All of India · online and on campus
14 Climate & sustainability hackathons in India
Sorted by how long you have left to apply. 21 open now, 13 closing this week, biggest published pool ₹2L.
14 hackathons
14 still open for registration · deadline first, then start date · all times IST
Capture The Flag | IIT Kanpur
- Where
- Kalyanpur
- Team size
- 1–2 per team
Hack-a-Sol 5.0
- Where
- Raipur
- Team size
- 2–4 per team
Beat The Market | TECHKRITI | IIT KANPUR
- Where
- Kalyanpur
- Team size
- 2–5 per team
Capture The Flag | TECHKRITI | IIT KANPUR
- Where
- Kalyanpur
- Team size
- 1–2 per team
Techkriti Grand Prix | TECHKRITI | IIT KANPUR
- Where
- Kalyanpur
- Team size
- 2–6 per team
Srujan 2026 - 1.5 Lakh Mega Hackathon In association with L&T Edutech - Online Round is Free, No Rs 1200 Charged in it
- Where
- Kalyan
- Team size
- 2–4 per team
WIE HackEarth 2.0
- Where
- Gautam Buddha Nagar
- Team size
- 2–4 per team
Green Shift Hacks
- Where
- Online
- Team size
- Team size not published
DataNyx'26
- Where
- Hyderabad
- Team size
- 2–4 per team
Singularity 2.0
- Where
- Thane
- Team size
- 2–4 per team
Hacknova'27 2.0
- Where
- Kharghar
- Team size
- 2–4 per team
Ooty Hacks
- Where
- Ooty
- Team size
- 1–4 per team
K Hacks 4.0
- Where
- Online
- Team size
- 2–4 per team
CTF - Capture The Flag
- Where
- Online
- Team size
- 1–2 per team
Answers
Climate & sustainability hackathons in India, in one paragraph
14 climate & sustainability hackathons are open for registration in India right now, 10 of them closing this week. The next deadline is Capture The Flag | IIT Kanpur on Saturday 14 November (1 day left to apply). 3 run online and 11 in person, mostly in Kalyanpur, Mumbai and Raipur. 8 of the 14 publish a prize pool, the largest ₹2L.
- 1Capture The Flag | IIT Kanpur
1 day left to apply · starts Sat 14 Nov IST
₹50,000 · 1–2 per team · Kalyanpur
- 2
- 3Beat The Market | TECHKRITI | IIT KANPUR
1 day left to apply · starts Sat 14 Nov IST
prize not published · 2–5 per team · Kalyanpur
- 4Capture The Flag | TECHKRITI | IIT KANPUR
1 day left to apply · starts Mon 16 Nov IST
prize not published · 1–2 per team · Kalyanpur
- 5Techkriti Grand Prix | TECHKRITI | IIT KANPUR
1 day left to apply · starts Sat 14 Nov IST
prize not published · 2–6 per team · Kalyanpur
- 6Srujan 2026 - 1.5 Lakh Mega Hackathon In association with L&T Edutech - Online Round is Free, No Rs 1200 Charged in it
3 days left to apply · starts Sat 19 Dec IST
prize not published · 2–4 per team · Kalyan
- 7WIE HackEarth 2.0
3 days left to apply · starts Mon 30 Nov IST
prize not published · 2–4 per team · Gautam Buddha Nagar
- 8Green Shift Hacks
5 days left to apply · starts Sun 18 Oct IST
$125 · team size not published · online
- 9
- 10
Frequently asked
- How many climate & sustainability hackathons in India are open for registration right now?
- 14 of the 14 upcoming climate & sustainability hackathons listed in India are still open for registration: 10 close within 7 days and 14 within 30 days. The very next one to close is Capture The Flag | IIT Kanpur, on 14 November 2026.
- Which climate & sustainability hackathons in India have the biggest prize pools?
- 8 of the 14 listed climate & sustainability hackathons publish a prize pool, the largest ₹2L. 1 of those is quoted in a currency other than the rupee; the card shows the organizer's own figure and the rupee value is only used to sort them into prize bands.
- Are there online climate & sustainability hackathons I can join from anywhere in India?
- 3 of the 14 run online and can be entered from anywhere in India; 11 need you on site, most often in Kalyanpur (4), Mumbai (2) and Raipur (1). 11 say in their own description that students may enter.
- How do I register for a hackathon listed here?
- Every listing here links back to the organizer's registration page — Devpost, Luma and Unstop — and registration happens there, not on Jamao. Nothing is behind a login and no listing is paid placement. Running one? Claim your listing from its page, or add it free at jamao.in/create, and it stops being overwritten by the import.
Counted from the 14 upcoming climate & sustainability hackathons listed on this page. Rebuilt twice a day from Devpost, Luma, Unstop. All times IST.
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By theme
Hackathons by city
National and online hackathons show on every city page too — that is what 8 of these 24 listings are.
Where this comes from
Public listings on Devpost, Luma, Unstop, re-read twice a day. Registration always happens on the organizer's own page; Jamao never stands between you and it.
Running a hackathon? List it free or claim your listing from its page and we stop rewriting it.