Complex sentence: Mohan Mishra lives in Bengali Tola in Laheriasarai, the twin city of Darbhanga, in North Bihar engaging himself with social activities such as free medical camps in remote villages in the Darbhanga, Jhanjharpur and Madhubani districts.
Split into simpler sentences: Mohan Mishra lives in Bengali Tola in Laheriasarai, the twin city of Darbhanga, in North Bihar. Mishra, nowadays, holds free medical camps in remote villages in Darbhanga and Madhubani districts.