Fortify Health and Suvita were incubated by Charity Entrepreneurship (EA’s charity incubator) and operate solely in India.

Hi Madhav, you can check Fortify Health; https://www.fortifyhealth.global 

If they're interested in animal welfare, Fish Welfare Initiative might be a good place to consider, I believe they have a sizable presence in India :)

If you’re comfortable with a level of abstraction away from direct aid, JPAL does a lot of work in India implementing and evaluating the interventions that become opportunities for effective giving:

https://www.povertyactionlab.org/

Hi Madhav, I work for Give For Good, a new donation platform that encourages people to donate in a new (more effective!) way. We don't select charities, but we did just add our first Indian charity. If you're interested to have a look, this is our website: www.giveforgood.world Best, Rik