Heat-day income cover that pays outdoor workers when a set temperature is hit
TL;DR Swelterline designs and distributes small heat-day income covers for outdoor workers. When the measured temperature near a worker's district crosses an agreed line, a licensed insurer pays a fixed sum straight to their bank account with no claim form. Employers, delivery platforms and worker federations buy it for their people.
Indian summers now cost outdoor workers whole days of pay. In the 2024 heat wave Churu touched 50.5 °C, about 25,000 heatstroke cases had been logged by 3 June and more than 40,000 suspected cases by 19 June[1].
A 2026 study of 1,560 outdoor workers in Tamil Nadu found high heat exposure raised the odds of lost productivity 1.4-fold[2].
Vendors, loaders, delivery riders and construction crews mostly earn by the day. So when they stop work to stay safe, who pays them? Nobody does, and an ordinary claim process can't price or verify a few hours lost to heat.
What it does, in regulatory terms: distribution and product design for an insurance policy underwritten by an IRDAI-registered insurer. Swelterline never carries the risk itself. IRDAI licenses insurers and their intermediaries[3], so the company needs an intermediary licence or a tech-partner contract with the insurer.
The product is a parametric cover. The insurer and Swelterline agree a trigger, say two days in a row above a set temperature at the nearest official weather station, and a fixed payout per trigger day. Third-party data decides the claim, not a loss adjuster[4]. Workers sign up through their employer or platform with a phone number and bank account, and see their trigger days on one simple screen.
The seed wanted smart contracts on a blockchain. We dropped the chain, because only a licensed insurer can pay claims in India and its own rules engine does the same job, and any payout in tokens would be taxed at 30% as a virtual digital asset[5]. The useful bit of the seed, paying out on objective data, stays.
The worker benefits but rarely buys. The payers are employers of outdoor crews, delivery and logistics platforms facing new social-security duties, and worker federations running group schemes with donor money.
Swelterline earns commission or a service fee from the insurer and a setup fee from the group buyer. We found no published Indian price for heat income cover, so working out the price is part of the first pilot.
The Code on Social Security brings gig and platform workers under social-security schemes, and more sections came into force on 21 November 2025[6]. NITI Aayog projected India's gig workforce to grow from 7.7 million in 2020–21 to 23.5 million by 2029–30[7]. Platforms will need schemes they can fund, and heat is the thing their riders complain about every summer.
There's no public figure for India's heat income insurance market. The best signal is a reported precedent - a heat policy for about 50,000 women in 22 districts of Rajasthan, Maharashtra and Gujarat began paying in June 2024. The online encyclopedia passage reporting it is unsourced though, so check it[8].
The gig workforce numbers above[7] are an adjacent signal of how many people a platform channel could reach.
The reported women workers' heat cover[8] shows insurers will write the risk in India, but it was a single programme and not an off-the-shelf product. Weather-indexed crop cover is common, and parametric triggers are used mostly in farm insurance in developing economies[4].
We found no Indian distributor selling priced heat-day cover to employers or platforms. That gap is the opening, and also a warning that demand is unproven.
| Difficulty | Moderate (50/100) |
| Starting capital | ₹1.2–2.2 Cr |
| Time to launch | 9–15 months |
The software is simple. The hard parts are getting an insurer and a reinsurer to file a product, picking a trigger that matches what workers actually feel on the street and holding an intermediary licence. Basis risk is the quiet killer, because if a worker loses a day and the station reads cooler then trust is gone.
Yes. You are distributing insurance, so you need IRDAI cover before you sell.
Building this outside India? The categories above usually have a local equivalent, so check with your own regulator.
Don't let AI set prices or approve payouts. The insurer's actuaries own the pricing, and a wrong call on a heat day costs a worker a day's pay.
Want to work out the AI layer for Swelterline? Talk to Yash →
Here's what can go south -
I think this is worth trying if you know insurance distribution and can hold your own with actuaries. If you were hoping to run a crypto product then skip it, because the value is in the trigger and the channel and not the ledger.
Prove one thing first - that a platform or employer will pay for a season of cover for 1,000 workers.
Plan for roughly ₹1.2–2.2 Cr over 9–15 months, mostly on trigger design, an intermediary licence and the long wait for an insurer to file.
Yes. Only IRDAI-registered insurers can underwrite it, and you need an intermediary registration or a tech contract with the insurer to distribute.
Yes, extreme heat hits outdoor workers in many countries. You'd need a local insurer partner and your regulator's licence to distribute.
The free Swelterline validation kit has the line-by-line capital breakdown, the effort scoring, the insurance and data-protection checklist, a 14-day validation sprint with pass/fail targets, a 90-day launch plan, 10 interview questions for workers and buyers, and 5 assumptions to test. Download the kit →
Thinking about building Swelterline or something close to it? The make-or-break work is getting an insurer to file a heat trigger that workers trust, and that's the kind of thing I help founders plan. If you need a hand, you know where to find me. Talk to Yash →
For illustration only. Names are fictional and ideas hypothetical; sourced facts are real but may be out of date. Nothing here is legal, financial or professional advice, and Yash Khatri is not personally liable for any use of it. Read the full disclaimer.