Khushi Baby began in 2014 with a question posed in a Yale engineering classroom: how do you close the immunisation gap for families at the last mile?

 

The first answer was a small, elegant one — an NFC tag worn as a necklace, replacing the kaala dhaaga thread that mothers in Udaipur already trusted, now carrying a digital health record. Years of field research, rigorous trials, and hard-won government trust followed. By 2019, KB was presenting a vision to transform primary health care tracking and response through a new digital framework for India’s largest state.

 

The COVID-19 pandemic accelerated everything. Overnight, the team was operating across 50,000 health workers and 12 million people — and what that pressure revealed was that KB's infrastructure could hold together an entire health system. That insight became CHIP, now India's second-largest digital health platform for community health management, with 86,000 CHWs onboarded across Rajasthan, Maharashtra, and Karnataka.

 

After a decade, the question has grown: not just how to collect data at the last mile, but how to ensure it closes the care loop all the way to measurable health outcomes.