Best Coffee Shops in Kumbakonam: A Local's Guide to Every Great Cup

Kumbakonam does not do third-wave coffee culture the way Bengaluru or Mumbai does, and anyone searching for the best coffee shops in Kumbakonam expecting exposed brick walls and single-origin pour-overs will be disappointed. What this city does instead, and does better than almost anywhere else in Tamil Nadu, is serve filter coffee in institutions that have barely changed their methods since the 1960s. The best coffee shops in Kumbakonam are not really "coffee shops" at all. They are messes, darshinis, Brahmin coffee stalls attached to agraharam houses, and a handful of newer cafes that have figured out how to serve both strong decoction coffee and a decent cappuccino to the growing number of visitors who come for the temples. This Kumbakonam coffee guide is written from the perspective of someone who has spent years eating and drinking across every neighborhood in this town, from the lanes near Sarangapani Temple to the stretch along Thanjavur Road where the newer establishments sit.

The Filter Coffee Institutions of Kumbakonam's Old City

If you want to understand where to get coffee in Kumbakonam, you need to start in the agraharam streets around the Kumbeswarar Temple and Sarangapani Temple. These are the lanes where Tamil Brahmin families have lived for generations, and the coffee culture here is not a trend. It is a daily ritual that starts before sunrise. The coffee in these parts is served in stainless steel tumblers and davarah-tumbler sets, the decoction is pulled from a metal filter that has probably been in use for decades, and the milk is boiled, not heated in a machine. You will not find menus here. You will find a man behind a counter who has been making the same coffee the same way for thirty years, and he will look at you slightly confused if you ask for a "latte."

Sree Krishna Coffee, Sarangapani Temple Area

Sree Krishna Coffee sits on a narrow lane about two minutes' walk from the eastern gopuram of Sarangapani Temple, and if you blink you will miss the entrance. The place is essentially a large room with plastic chairs, a TV playing Tamil news at moderate volume, and a counter where the owner pulls decoction into a steel jug with the kind of muscle memory that comes from doing it ten thousand times. A cup of filter coffee here costs between ₹25 and ₹35, and it arrives in a steel tumbler so hot you have to pour it back and forth between the tumbler and the davarah to cool it down. The coffee is strong, slightly sweet, and has that particular bitterness that comes from dark-roasted chicory blend, which is standard across Tamil Nadu but done here with more restraint than at most places.

What to Order: Filter coffee and a plate of bun maska (buttered bun, toasted on the tawa) for around ₹40 total. The bun maska is not on any menu. You just ask.

Best Time: Between 6:30 AM and 9:00 AM, before the temple crowd fills the lanes and before the heat makes sitting in a non-AC room unpleasant. By 10:30 AM the place starts emptying out and the coffee loses its edge because the decoction batch from the morning is running low.

The Vibe: Functional, not atmospheric. This is where auto drivers, temple priests on break, and local shopkeepers come to drink coffee and read the newspaper. You will be noticed as an outsider but not unwelcome. The one thing that catches people off guard is the lack of seating comfort. The plastic chairs are the old-fashioned kind that leave marks on your thighs after twenty minutes.

Insider Tip: Walk through the lane behind the shop. It connects to the path that leads to the Chakrapani Temple, and most tourists have no idea this shortcut exists. You can cut five minutes off the walk between the two temples.

Srinivasa Coffee Bar, Near Kumbeswarar Temple

Srinivasa Coffee Bar is on the street that runs along the southern side of Kumbeswarar Temple, in the stretch between the temple's southern entrance and the market area. This is one of those places that locals will point you toward when you ask where to get coffee in Kumbakonam if you want "the real thing." The owner, whose family has run this spot for at least two generations, keeps the decoction filter going from about 5:30 AM onward. A cup costs ₹20 to ₹30, and the ratio of decoction to milk to sugar is calibrated for people who drink this every single day. It is not sweet the way a Starbucks caramel macchiato is sweet. It is just enough sugar to cut the bitterness of the chicory.

What to Order: Filter coffee and a plate of kesari (semolina halwa) that costs ₹25. The kesari is made fresh each morning and is gone by noon.

Best Time: Early morning, ideally before 8:00 AM. The shop closes by 2:00 PM most days, and the coffee after 11:00 AM tastes like it has been sitting in the urn too long.

The Vibe: A classic Tamil Nadu coffee bar. Steel counters, no decoration to speak of, a calendar from some local business pinned to the wall, and the owner's family eating lunch in the back while customers come and go. The drawback is that there is almost no seating. Most people stand at the counter, drink, pay, and leave. If you want to sit, there are two benches outside, but from April to June the afternoon sun makes those benches unusable.

Insider Tip: The temple prasadam distribution counter opens at 8:30 AM just around the corner. Get your coffee first, then walk over for the temple's pulihora (tamarind rice) which is distributed free. The combination of hot filter coffee and pulihora on a weekday morning is one of the most underrated eating experiences in Kumbakonam.

The Newer Cafes and Coffee Spots in Kumbakonam

The top cafes Kumbakonam has seen in the last decade or so are mostly clustered along the main roads, particularly the stretches toward Thanjavur and Chennai. These places cater to a different crowd. College students, families visiting from Chennai for temple trips, and the occasional solo traveler who needs Wi-Fi and a place to sit for more than fifteen minutes. The coffee here is a mix of traditional filter coffee and espresso-based drinks made on machines that the owners learned to operate from YouTube videos and short courses in Coimbatore. The quality varies, but a few places have genuinely figured it out.

Cafe 2.0, Thanjavur Road

Cafe 2.0 is on the main Thanjavur Road, about 1.5 kilometers from the Kumbakonam bus stand, in the direction of the Government General Hospital. It opened a few years ago and is one of the few places in town where you can sit in an air-conditioned room, order a cappuccino (₹120 to ₹150), and not feel like you are compromising on quality. The espresso machine is a proper Italian-made unit, and the owner sources beans from a supplier in Pollachi, which is one of the coffee-growing pockets in Tamil Nadu. A filter coffee here costs ₹40 to ₹50, which is more than double what you would pay at the old-city stalls, but the seating is comfortable, the AC works most of the time, and they do not rush you out.

What to Order: Cold brew (₹130) if you are visiting between March and June, when the heat makes hot coffee feel like a punishment. Their masala chai at ₹35 is also solid, made with fresh ginger and cardamom.

Best Time: Late afternoon, between 3:00 PM and 6:00 PM. The morning crowd is thin because most locals are still at the traditional coffee bars. The evening crowd is college students and families, and the energy is better.

The Vibe: Clean, bright, with white walls and a few plants that someone actually waters. The music is Tamil film songs played at a volume that allows conversation. The one complaint is that the Wi-Fi is unreliable during peak hours. It works fine at 3:00 PM but slows to a crawl by 5:30 PM when everyone is on their phones.

Insider Tip: The auto stand outside Cafe 2.0 is one of the few in Kumbakonam where drivers are willing to use the meter, at least during the day. After 7:00 PM, expect to negotiate. A ride from Cafe 2.0 to the Sarangapani Temple area should cost ₹60 to ₹80 by meter, but drivers will quote ₹100 to ₹120 after dark.

The Coffee House, Near Railway Station

This is not the chain Coffee House from the old Indian Coffee House network, despite the name. It is a small, independently run cafe about 400 meters from Kumbakonam Railway Station, on the road that leads toward the town hall area. The owner chose the name deliberately, banking on the nostalgia that the word "coffee house" carries for Tamil Nadu residents. The place serves filter coffee at ₹30, espresso at ₹80, and a decent plate of vegetable puff at ₹35. The seating is basic but the location makes it useful. If you are waiting for a train, this is the closest decent coffee spot to the station.

What to Order: Filter coffee and a samosa (₹20). The samosa is not exceptional but it is hot and fresh, which is all you need when you have forty minutes before your train.

Best Time: Morning, between 7:00 AM and 10:00 AM. The afternoon heat turns the room into a furnace because the AC unit is old and struggles after noon.

The Vibe: A waiting room with coffee. People come, drink, check their phones, and leave. No one lingers. The walls have framed photographs of old Kumbakonam, including a few of the Mahamaham tank during the 2004 festival, which is genuinely interesting if you are into the town's history.

Insider Tip: The railway station's retiring room costs ₹100 per day if you have a confirmed ticket. It is not advertised well, and most travelers do not know it exists. If you have a long wait between trains, ask at the station master's office.

Coffee and the Temple Circuit: Where to Refuel Between Visits

Kumbakonam has over 180 temples within and around the town, and visiting even a fraction of them means walking through narrow lanes in the heat for hours. Knowing where to get coffee in Kumbakonam during a temple circuit is not a luxury. It is a survival strategy. The spots near the major temples are not always the best quality, but they are the most convenient, and sometimes a mediocre filter coffee at the right moment is better than a great one three kilometers away.

Mahamaham Tank Area Coffee Stalls

The area around the Mahamaham Tank, which is the sacred tank at the center of Kumbakonam and the site of the massive Mahamaham festival every twelve years, has a cluster of small coffee stalls that cater to the steady stream of pilgrims and tourists. These are not named establishments. They are counters with a decoction filter, a gas stove, and a man who will pour you a cup for ₹15 to ₹25. The coffee here is thinner than what you get in the agraharam stalls because the decoction-to-milk ratio favors milk, but it is hot, it is sweet, and it is exactly what you need after walking around the tank in the morning sun.

What to Order: A cup of filter coffee and a banana (₹10). The banana is not a menu item. It is just sitting on the counter, and the stall keeper will hand you one if you ask.

Best Time: Between 7:00 AM and 10:00 AM, when the tank area is full of morning walkers and the stalls are fully stocked. By noon, the stalls start winding down and the coffee gets watery.

The Vibe: Chaotic but functional. The tank area is one of the busiest spots in Kumbakonam on any given day, and the coffee stalls operate in the middle of this flow. You will be jostled, you will sweat, and you will drink your coffee standing up. The lack of shade around the tank's northern side is genuinely brutal from April to June. If you are visiting during summer, do this circuit before 8:00 AM or after 5:00 PM.

Insider Tip: The Naganathaswami Temple, one of the Paadal Petra Sthalams, is about 200 meters from the tank's northeastern corner. Most guidebooks mention it but few tourists actually walk there because it is not visible from the main road. After your coffee, walk over. The temple's architecture is stunning and the crowd is almost nonexistent compared to the big temples.

Darshini-Style Coffee on Prasastra Street

Prasastra Street runs between the Sarangapani Temple and the Ramaswamy Temple, and it has at least three small darshini-style eateries that serve filter coffee as part of a larger menu of idli, dosa, and pongal. These are not coffee specialty spots, but the coffee is consistently good because the owners know that a bad cup will lose them regulars. A filter coffee at any of these places costs ₹20 to ₹30, and a full tiffin (idli, dosa, pongal, sambar, chutney, and coffee) costs ₹80 to ₹120. The coffee here is made with the same dark-roasted chicory blend that is standard across Tamil Nadu, but the decoction is pulled fresh every two hours, which keeps the flavor from going flat.

What to Order: Mini tiffin (₹90 to ₹110) which includes two idlis, one dosa, pongal, sambar, two chutneys, and a cup of filter coffee. It is the best value meal in Kumbakonam for the price.

Best Time: Breakfast hours, 7:00 AM to 9:30 AM. The lunch crowd starts arriving by 11:30 AM and the coffee takes a backseat to the meals.

The Vibe: Fast service, no frills, steel tables and chairs that are wiped down between customers with varying degrees of thoroughness. The noise level is high because these places are popular and the acoustics are terrible. If you are looking for a quiet coffee, this is not it.

Insider Tip: The Ramaswamy Temple on Prasastra Street is one of the most underrated temples in Kumbakonam. The artwork on the pillars inside the temple is extraordinary, depicting scenes from the Ramayana in a style that is distinct from the Chola-period temples. Visit it after your tiffin. The temple opens at 6:00 AM and closes at 12:00 PM, then reopens at 4:00 PM.

The Kumbakonam Coffee Guide to Seasonal Drinking

Kumbakonam's climate dictates everything about when and how you drink coffee here. The town sits in the Cauvery delta and the heat from March to June is not the dry heat of Chennai. It is a thick, humid heat that sits on your chest. During these months, the traditional filter coffee stalls still serve hot coffee because that is what their customers expect, but the newer cafes start pushing cold coffee, iced tea, and fresh lime soda. The monsoon months of July through September bring rain that can flood the low-lying areas around the Mahamaham Tank, making some of the temple-adjacent coffee stalls inaccessible for hours at a time. Winter, from November to February, is the best time to do a proper coffee crawl through the old city. The mornings are cool enough to sit outside with a hot cup, the temple crowds are thinner than during the festival season, and the decoction tastes better because the milk curdles less in the cooler air.

Monsoon Coffee at the Agraharam Stalls

During the monsoon, the agraharam lanes around the Kumbeswarar Temple become rivers of rainwater if the drainage is overwhelmed, which it often is. But the coffee stalls keep operating. There is something about drinking hot filter coffee while rain hammers the tin roof overhead that feels more Tamil Nadu than almost anything else. The agraharam stalls do not have signage, so you find them by following the smell of decoction. A cup costs ₹20 to ₹30, and the owners will usually let you stand under their awning until the rain passes.

What to Order: Filter coffee and a plate of bajji (fritters) for ₹40 to ₹50 total. Bajji is a monsoon staple across Tamil Nadu, and the agraharam stalls make them with a thicker batter than the street vendors.

Best Time: Late afternoon, between 4:00 PM and 6:00 PM, when the rain is usually at its heaviest and the coffee is the most comforting.

The Vibe: Intimate and slightly claustrophobic. The stalls are small, the rain is loud, and you are standing shoulder to shoulder with people who live in the lane. It is not a tourist experience. It is a local experience that you happen to be invited into.

Insider Tip: The drainage lanes along the eastern side of Kumbeswarar Temple flood heavily during heavy rain. If you are walking from the temple to the agraharam stalls during monsoon, take the road that runs along the temple's northern side instead. It stays passable even during heavy downpours.

Summer Cold Coffee at the New Cafes

From April to June, the top cafes Kumbakonam has in its newer commercial areas shift their menus toward cold beverages. Cold coffee at these places costs ₹80 to ₹120, and it is made with instant coffee or pre-made decoction, milk, ice, and sugar, blended in a mixer grinder. It is not artisanal. It is not single-origin. But at 2:00 PM when the temperature is 39 degrees Celsius and the power cuts out for twenty minutes, a cold coffee from a cafe with a generator backup is the difference between a good day and a miserable one. The quality varies wildly from place to place, so stick to the cafes that have been open for at least two years. The newer ones tend to use too much sugar and not enough coffee.

What to Order: Cold coffee (₹80 to ₹120) and a plate of French fries (₹70 to ₹90) if the cafe has a fryer. The fries are not on every menu but the ones that have them do them well.

Best Time: Afternoon, between 1:00 PM and 4:00 PM, when the heat is at its worst and you need to be inside an air-conditioned space.

The Vibe: Survival mode. Everyone in the room is there because they need to cool down, not because they want to socialize. The music is still playing but no one is listening. The AC units in these cafes are working overtime and you can hear them straining.

Insider Tip: Power cuts in Kumbakonam are common during summer afternoons, typically between 1:00 PM and 3:00 PM. Cafes with inverter backups will keep the fans running but the AC will cut out. Ask the owner if they have a generator before you sit down. If they hesitate, move to the next place.

Coffee Culture and the Brahmin Agraharam Tradition

The best coffee shops in Kumbakonam are inseparable from the agraharam culture that shaped them. The agraharams are the traditional Brahmin quarters that line the streets around the major temples, laid out in a grid pattern with a temple at one end and a tank or open ground at the other. Coffee in these neighborhoods is not a commercial product. It is a domestic ritual that happens to be available for purchase. The women of the household make filter coffee every morning and evening, and the coffee stalls that operate on the street are essentially extensions of these kitchens. The decoction is made the same way, the milk is boiled the same way, and the steel tumblers are the same ones you would find in a Brahmin household's kitchen cupboard. When you drink coffee at an agraharam stall, you are drinking something that was perfected in a home kitchen over generations, not in a commercial kitchen over a business plan.

Home Coffee at Agraharam Houses Near Sarangapani Temple

This is not a commercial venue, but it is one of the most authentic coffee experiences in Kumbakonam if you can arrange it. Some families in the agraharam lanes near Sarangapani Temple host small groups for traditional Tamil meals, and the coffee that precedes or follows these meals is made by the family matriarch using a decoction filter that has been in the family for decades. The coffee here is not for sale. It is served as part of a meal that costs ₹200 to ₹400 per person depending on the spread, and you need a local connection to get invited. The flavor is different from the stall coffee because the decoction is made fresh for each serving, not in a large batch. The milk is from the local dairy, not the packet. And the chicory ratio is lower, which makes the coffee taste more like actual coffee and less like chicory with coffee as a supporting note.

What to Order: Whatever is served. You do not choose. The coffee comes after the meal, along with buttermilk and a banana.

Best Time: Lunch hours, between 12:30 PM and 2:00 PM. The coffee is part of the meal experience, not a standalone order.

The Vibe: A Brahmin household in the old city. The floor is washed, the rangoli is fresh, and you sit on a wooden plinth or a mat. The family eats with you, and the conversation is in Tamil unless someone switches to English for your benefit. The one thing that surprises people is the formality. You are expected to eat with your right hand, not touch the serving vessels with your fingers, and wait to be offered seconds.

Insider Tip: The best way to get an invitation is through a local guide or a temple priest. Cold-calling on agraharam houses is not done. If you are staying at a homestay in the old city, ask your host. They almost certainly know someone who hosts these meals.

Where to Get Coffee in Kumbakonam After Dark

Kumbakonam shuts down early. By 9:30 PM, most shops in the old city are closed, and by 10:00 PM the streets are empty except for the occasional auto-rickshaw and the dogs. The traditional coffee bars close by 2:00 PM at the latest. The newer cafes stay open until 9:00 or 10:00 PM, but the coffee after 7:00 PM is usually just whatever decoction is left from the afternoon batch. If you want a good cup of coffee in the evening, your options are limited. The best strategy is to drink your coffee before 6:00 PM and switch to tea or fresh lime soda after that. The tea at the evening stalls is actually quite good, made with boiled milk and tea dust, and it costs ₹15 to ₹20.

Evening Coffee at the Bus Stand Area

The area around the Kumbakonam New Bus Stand has a few tea and coffee stalls that stay open until 10:00 PM or later, catering to passengers waiting for late buses to Thanjavur, Trichy, and Chennai. The coffee here is not great. It is made from instant powder or pre-sweetened coffee mix, and it costs ₹15 to ₹25. But it is hot, it is available, and it comes with the ambient noise of a Tamil Nadu bus stand at night, which is its own kind of experience. The buses to Chennai depart at 8:00 PM, 9:00 PM, and 10:30 PM, and the coffee stalls do their best business during the hour before each departure.

What to Order: Coffee (₹15 to ₹20) and a packet of biscuits (₹10). The biscuits are the local glucose kind, not anything fancy.

Best Time: Evening, between 7:00 PM and 9:30 PM, when the bus crowd is at its thickest and the stalls are fully operational.

The Vibe: A bus stand at night. Fluorescent lights, announcements in Tamil that you cannot quite make out, and the smell of diesel mixed with coffee. It is not romantic. It is not atmospheric. But it is real, and it is where Kumbakonam lives after the temples close.

Insider Tip: The bus stand area is where you will find the cheapest auto-rickshaw fares in town because the drivers are competing for the late-night crowd. A ride from the bus stand to the old city should cost ₹50 to ₹70, which is less than what you would pay from the railway station. But the drivers will try to charge ₹100. Negotiate before you get in.

The Kumbakonam Coffee Guide to Transport and Logistics

Getting between the top cafes Kumbakonam has to offer requires a mix of walking and auto-rickshaws. The old city is not walkable in the traditional sense because the lanes are narrow, the surfaces are uneven, and the traffic (such as it is) consists of two-wheelers and the occasional car that should not be trying to fit through a space designed for bullock carts. The newer areas along Thanjavur Road and the station road are more walkable but still lack footpaths in most places. Auto-rickshaws are the primary mode of transport for most visitors, and the fares are reasonable. A ride within the old city costs ₹40 to ₹60, and a ride from the old city to the newer commercial areas costs ₹60 to ₹100. Ola and Uber operate in Kumbakonam but the availability is inconsistent, particularly during peak hours and in the old city lanes where GPS signals are unreliable. Rapido is more reliable for short trips, with fares starting at ₹30 for a bike ride.

Walking the Coffee Trail Through the Old City

The best way to experience the best coffee shops in Kumbakonam is on foot, starting from the Kumbeswarar Temple and working your way through the agraharam lanes toward Sarangapani Temple, then looping back through Prasastra Street. This walk takes about two hours if you stop for coffee at three or four places, and it covers roughly 2.5 kilometers. The route passes through the heart of the old city, past agraharam houses with their distinctive wooden doors and carved pillars, past small shrines that most guidebooks do not mention, and past the kind of everyday life that you cannot see from an auto-rickshaw. The walk is best done in the morning, between 7:00 AM and 10:00 AM, when the lanes are active but not yet hot.

What to Carry: A water bottle, sunscreen, and small change in ₹10 and ₹20 notes. The coffee stalls do not accept UPI and some do not accept ₹500 notes.

Best Time: November to February, when the morning temperature is between 22 and 26 degrees Celsius and the walk is genuinely pleasant. Avoid this route from April to June unless you are a masochist.

The Vibe: A living neighborhood, not a tourist trail. You will see children going to school, women drawing rangoli, and men reading newspapers on their doorsteps. The coffee is the excuse. The walk is the experience.

Insider Tip: The lane that connects the Kumbeswarar Temple's northern side to the Ramaswamy Temple has a small Ganesh temple that is at least 200 years old. It is not marked on any map, and the priest will be surprised to see you. Leave a ₹10 offering and move on. It is a good luck thing.

Frequently Asked Questions

What is the one must-try local dish or street food that Kumbakonam is genuinely famous for, and where is the best place to eat it?

Kumbakonam is famous for its filter coffee and its temple prasadam, particularly the pulihora (tamarind rice) and the curd rice distributed at the major temples. The best place to eat pulihora is at the Sarangapani Temple, where it is distributed free during the morning puja, usually between 11:30 AM and 12:30 PM. The curd rice at the Kumbeswarar Temple, distributed during the same window, is also excellent. For a paid meal, the mini tiffin at the darshini-style eateries on Prasastra Street, costing ₹80 to ₹120, is the best value in town.

Is Kumbakonam expensive to visit? Give a realistic daily budget in ₹ for mid-tier travelers covering accommodation, food, and local transport.

A mid-tier daily budget in Kumbakonam is ₹1,500 to ₹2,500 per person. A decent non-AC room at a lodge near the bus stand costs ₹500 to ₹800 per night, while a basic AC room costs ₹1,000 to ₹1,500. Food costs ₹300 to ₹500 per day if you eat at local messes and coffee bars, and ₹600 to ₹900 if you eat at the newer cafes. Auto-rickshaw transport within the city costs ₹200 to ₹400 per day. Temple entry is free at most places, though special darshans at Sarangapani Temple cost ₹50 to ₹100.

Is UPI or digital payment widely accepted across Kumbakonam's restaurants, markets, and tourist spots, or is cash still essential for street food and local vendors?

UPI is accepted at the newer cafes, larger restaurants, and some shops in the commercial areas along Thanjavur Road. The old city coffee stalls, temple prasadam counters, street food vendors, and auto-rickshaw drivers operate almost entirely on cash. Carry ₹500 to ₹1,000 in small notes (₹10, ₹20, ₹50, ₹100) at all times. The ATMs near the bus stand and the railway station frequently run out of cash on weekends and festival days, so withdraw money on weekdays.

Is tap water safe to drink in Kumbakonam, or should travelers rely on sealed bottled water, and is filtered water readily available at dhabas and restaurants?

Tap water in Kumbakonam is not safe to drink without treatment. The municipal supply is treated but the distribution pipes are old and contamination is common. Buy sealed bottled water (1 liter costs ₹20 to ₹25) or carry a filter bottle. Most restaurants and dhabas will provide filtered or boiled water if you ask, but they will not offer it unprompted. The water at the temples, distributed as prasadam, is usually from a treated source and is generally safe, but use your judgment.

What is the most reliable neighbourhood in Kumbakonam for remote workers and digital nomads, and what is the average co-working day-pass cost in ₹?

Kumbakonam does not have dedicated co-working spaces. The most reliable neighborhood for remote workers is the area around the railway station and the New Bus Stand, where the newer cafes offer Wi-Fi and power outlets. Cafe 2.0 on Thanjavur Road and the cafe near the railway station are the two most commonly used spots. There is no day-pass system. You buy a coffee (₹40 to ₹150) and sit for as long as you like. The Wi-Fi speed ranges from 10 to 25 Mbps during off-peak hours but drops significantly after 5:00 PM. For serious work, get a local Jio or Airtel SIM with a data plan. Mobile data in Kumbakonam is more reliable than Wi-Fi at most cafes.