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4 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.

AI & ML13Web3 & blockchain2Fintech4Health tech13Climate & sustainability24Open source1All themes
Any deadlineClosing this weekClosing this month
Online + in personOnlineIn personOpen to students
Any prize poolUnder ₹50K₹50K – ₹2L₹2L – ₹10L₹10L and up

4 hackathons

4 still open for registration · deadline first, then start date · all times IST

1 day left to apply
₹50,000
via Unstop

Capture The Flag | IIT Kanpur

Where
Kalyanpur
Team size
1–2 per team
Sat, 14 NovApply by 14 Nov
1 day left to apply
₹1.2L
via Unstop

Hack-a-Sol 5.0

Where
Raipur
Team size
2–4 per team
Mon, 16 NovApply by 14 Nov
7 days left to apply
₹1L
via Unstop

DataNyx'26

Where
Hyderabad
Team size
2–4 per team
Sun, 29 NovApply by 19 Nov
8 days left to apply
₹75,000
via Unstop

Hacknova'27 2.0

Where
Kharghar
Team size
2–4 per team
Sun, 7 FebApply by 20 Nov

Answers

Climate & sustainability hackathons in India, in one paragraph

4 climate & sustainability hackathons are open for registration in India right now, 3 of them closing this week. The next deadline is Capture The Flag | IIT Kanpur on Saturday 14 November (1 day left to apply). 0 run online and 4 in person, mostly in Kalyanpur, Raipur and Hyderabad. 4 of the 4 publish a prize pool, the largest ₹1.2L.

  1. 1
    Capture The Flag | IIT Kanpur

    1 day left to apply · starts Sat 14 Nov IST

    ₹50,000 · 1–2 per team · Kalyanpur

  2. 2
    Hack-a-Sol 5.0

    1 day left to apply · starts Mon 16 Nov IST

    ₹1.2L · 2–4 per team · Raipur

  3. 3
    DataNyx'26

    7 days left to apply · starts Sun 29 Nov IST

    ₹1L · 2–4 per team · Hyderabad

  4. 4
    Hacknova'27 2.0

    8 days left to apply · starts Sun 7 Feb IST

    ₹75,000 · 2–4 per team · Kharghar

Frequently asked

How many climate & sustainability hackathons in India are open for registration right now?
4 of the 4 upcoming climate & sustainability hackathons listed in India are still open for registration: 3 close within 7 days and 4 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?
4 of the 4 listed climate & sustainability hackathons publish a prize pool, the largest ₹1.2L.
Are there online climate & sustainability hackathons I can join from anywhere in India?
0 of the 4 run online and can be entered from anywhere in India; 4 need you on site, most often in Kalyanpur (1), Raipur (1) and Hyderabad (1). 4 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 4 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.