Her stint in Bombay began attached to Indira Gandhi's family planning mission project. Lillian's job was to persuade unwilling people -- some 20,000 lived and worked at the seven Godrej factories there -- of the need for permanent birth control measures or forgo government benefits. She helped out in a lot of the vasectomy procedures, guiltily, miserably.

https://www.rediff.com/news/special/jimmy-carters-india-connection/20250109.htm

Decades later when she was in her late 60s, Lillian Carter joined the Peace Corps and was assigned to Vikhroli, India, an industrial town near Mumbai that was owned by the Godrej family, one of the country's wealthiest. Prime Minister Indira Ghandi had started a family-planning program, and the Godrejs offered Vikhroli as a test of the most stringent application of the program. Lilly, as she was known in India, was to teach women about contraception and men about vasectomy. She hated the work, having an "aversion to the strict family-planning regimen," as President Carter writes in his book.

https://www.nursingcenter.com/journalarticle?Article_ID=812507&Journal_ID=54030&Issue_ID=812467

more generally

https://www.vox.com/future-perfect/2019/6/5/18629801/emergency-in-india-1975-indira-gandhi-sterilization-ford-foundation

(http://www.autoadmit.com/thread.php?thread_id=5663809&forum_id=2...id.#48552593)