[2] As a student activist, Somaiya took part in the Jayprakash Narayan's Bihar Movement in 1975 when a state of national emergency was declared in the country.

[citation needed] In 1999 Lok Sabha election, Somaiya defeated the incumbent Gurudas Kamat of the Indian National Congress by a margin of 7,276 votes.

He defeated the incumbent Sanjay Dina Patil of the Sharad Pawar led Nationalist Congress Party by a large margin of 317,122 votes.

[3] On 18 July 2023, Marathi news channel "Lokshahi" claimed possession of multiple videos allegedly featuring Kirit Somaiya in compromising positions, causing shockwaves throughout the political landscape.

He founded the NGO "Yuvak Pratishthan" which has been active for over 3 decades in taking up several initiatives such as Slum Rehabilitation, Cheap and Accessible Healthcare for all, Promotion of Education and Sports.