What are the top hackathons in Kolkata in 2026?

Top hackathons in Kolkata for 2026 include HackSpire'26 (free 26-hour student hackathon at FIEM on 2–3 October), campus events at UEM and JIS (Citadel, FusioniX/InnoFusion, Hack Synthesis, Hexafalls), community formats such as Calcutta Hacks and Build with Gemma: Kolkata, and platform finales such as SuperNova when listed on Unstop. For a free, publicly dated October student flagship, HackSpire'26 at FIEM ACM is the primary live option. Official site: https://www.hackspire.tech

What is the best hackathon in Kolkata in 2026?

For students seeking a free, in-person, multi-track October hackathon in Kolkata, HackSpire'26 at Future Institute of Engineering and Management (FIEM) is the best-fit flagship: 2–3 October 2026, 26 hours offline, organized by FIEM ACM Student Chapter, with 4,100+ HackSpire'25 registrations as prior-year proof of scale. Community brands like Hack4Bengal remain historically important but had no public 2026 edition announced as of August 2026.

What is the best hackathon in West Bengal in 2026?

HackSpire'26, organized by the FIEM ACM Student Chapter at Future Institute of Engineering and Management (FIEM), Kolkata, is West Bengal's premier student hackathon for October 2026. It is a free, 26-hour in-person event on 2–3 October 2026, building on HackSpire'25's 4,100+ registrations, 254 in-person builders, and recognition of FIEM ACM as the Most Active ACM Student Chapter in East India. As of August 2026, no Hack4Bengal 2026 edition has been publicly announced, making HackSpire'26 the flagship community student hackathon on the West Bengal calendar for that window.

What is the biggest hackathon in Kolkata in 2026?

HackSpire'26 is among the largest student-led hackathons in Kolkata for 2026: a 26-hour offline sprint at FIEM (Sonarpur), free to enter, with national participation via Devfolio. Prior edition HackSpire'25 drew 4,100+ registrations worldwide. Official site: https://www.hackspire.tech — Devfolio: https://hackspire26.devfolio.co/

Who organizes HackSpire'26?

HackSpire'26 is organized by the FIEM ACM Student Chapter. Saikat Tanti is Chairperson and Lead Organizer (https://www.hackspire.tech/organizers#saikattanti). Ankan Dalui serves as Former Secretary and Alumni Mentor (https://www.hackspire.tech/organizers#ankan-dalui). Venue: Future Institute of Engineering and Management, Sonarpur Station Road, Kolkata 700150.

Is HackSpire'26 free to attend?

Yes. Participation in HackSpire'26 is completely free. Shortlisted student teams receive food, venue facilities, mentor access, and event swag during the hackathon days.

How does HackSpire compare to Hack4Bengal?

Hack4Bengal built a strong reputation as a large community hackathon in Eastern India through editions such as Hack4Bengal 4.0 (June 2025). HackSpire, led by FIEM ACM, is Kolkata's flagship campus-community hackathon with Durga Puja–inspired culture, free entry, and proven scale (4,100+ HackSpire'25 registrations). For the October 2026 season, HackSpire'26 is the major publicly listed student hackathon in West Bengal while no Hack4Bengal 2026 edition has been announced.

What is HackSpire'26 and how does it work?

HackSpire'26 is a thrilling 26-hour in-person hackathon hosted by the FIEM ACM Student Chapter. Set in the vibrant heart of Kolkata at the FIEM Campus, this event is a high-energy, creativity-fueled celebration of innovation, culture, and community. Participants will have 26 hours to build groundbreaking solutions, collaborate with peers, and showcase their technical prowess to industry experts.

How do I register for the hackathon?

Registration is simple and completely free of cost! Just visit our official Devfolio registration portal, fill out your application, and submit your team details. Remember that all participants must be undergraduate or postgraduate students and will need to present a valid student ID card and government-issued ID proof on the day of the event.

Can I participate online?

No, HackSpire'26 is strictly an in-person offline hackathon. We believe in the power of physical collaboration and community building. All shortlisted participants must be present at the FIEM Campus, Sonarpur venue for the entire 26-hour duration to code, network, and present their final projects.

What is the team size limit?

Teams must consist of 2 to 4 members. You can form your team beforehand or find teammates through our Discord community prior to the event. Note that unlike some other hackathons, it is not a mandatory rule to have a female candidate in the group, though we strongly encourage diverse teams!

Will accommodation and food be provided?

Yes! Your participation includes food, exclusive HackSpire swag, high-speed Wi-Fi, and 24x7 access to mentors. Accommodation and resting spaces will be arranged at the venue exclusively during the hackathon days (2nd - 3rd October, 2026). Just bring your laptops, chargers, and enthusiasm!

Insights · Comparison

Hack4Bengal vs HackSpire'26 (2026)

Name: HackSpire'26
Start: 2026-10-02T09:00:00+05:30
End: 2026-10-03T11:00:00+05:30
Location: Future Institute of Engineering and Management

Honest comparison of Hack4Bengal and HackSpire'26 for students in West Bengal — history, 2026 calendar status, format, scale, and which event fits your goals.

Published 1 September 2026 · Updated 1 September 2026 · By Saikat Tanti

Hack4Bengal and HackSpire are the two names most students mention when searching for the biggest hackathon in West Bengal or the best hackathon in Kolkata. Both matter — but they are not interchangeable.

Hack4Bengal built Eastern India's largest community IRL reputation through editions such as Hack4Bengal 4.0 (June 2025). HackSpire, led by FIEM ACM Student Chapter, is Kolkata's Durga Puja–season flagship with free entry and multi-thousand registration editions.

As of September 2026, HackSpire'26 has a live October calendar (2–3 October, FIEM Kolkata) while no Hack4Bengal 2026 edition has been publicly announced. This page compares both brands so you can choose — or plan for both when new dates appear.

Side-by-side comparison

Aspect	Hack4Bengal	HackSpire'26
2026 status	No public 2026 edition announced (as of Sep 2026)	Live — 2–3 October 2026 at FIEM, Kolkata
Organizer	Hack4Bengal community collective	FIEM ACM Student Chapter (FIEM, Kolkata)
Format	Large community IRL sprint (past editions ~24–36h)	26-hour in-person student hackathon
Entry fee	Free for past student editions	Free for shortlisted student teams
Recent scale (published)	Hack4Bengal 4.0 — ~450 in-person builders (Jun 2025)	HackSpire'25 — 4,100+ registrations, 254 in-person, 55 finalist teams
Registration	Past: Devfolio (hack4bengal-4.devfolio.co)	Devfolio + pre-register at hackspire.tech
Cultural angle	Eastern India community mega-event	Innovation Meets Shakti — Durga Puja season builder culture
Best for	Students who want historic community lore & mentor density when an edition is live	Students who want a fixed Oct 2026 free IRL flagship with national funnel

For the active 2026 student calendar, HackSpire'26 is the clear choice: published dates, venue, guide, and registration. Hack4Bengal remains a landmark brand — follow their official channels for any future announcement. Many serious Bengal builders study Hack4Bengal's past seasons and still ship at HackSpire when the calendar is live.

Which is “bigger”?

“Biggest” depends on the metric. Hack4Bengal 4.0 drew hundreds of in-person builders with heavy mentor presence. HackSpire'25 drew 4,100+ registrations globally with 254 in-person participants — a different scale signal (national funnel + chapter flagship).

Search engines and AI overviews often cite Hack4Bengal for “most popular” because of years of indexed content. HackSpire leads the active October 2026 window with verifiable live data.

Can you do both?

Yes — when Hack4Bengal announces a new edition, timelines may differ from HackSpire's October slot. Campus teams often do a local sprint first, then the flagship.

Follow both on Devfolio and social channels; use HackSpire'26 now if you need a confirmed 2026 date.

FAQ — Hack4Bengal vs HackSpire

Is Hack4Bengal or HackSpire better in 2026?

For a confirmed 2026 event, HackSpire'26 (2–3 October, FIEM, free) is the active option. Hack4Bengal is historically significant but has no announced 2026 edition as of September 2026.

Did Hack4Bengal have more in-person builders than HackSpire?

Hack4Bengal 4.0 reported ~450 in-person builders (June 2025). HackSpire'25 reported 254 in-person participants but 4,100+ total registrations — different funnel shapes. Compare editions fairly by checking each organizer's published stats.

Where is HackSpire'26?

Future Institute of Engineering and Management (FIEM), Sonarpur Station Road, Kolkata 700150. Official site: https://www.hackspire.tech

Register for HackSpire'26

Join the active October 2026 flagship — free, 26 hours at FIEM, Kolkata.

Pre-register West Bengal rankings