Complex sentence: Diwakar participated in musical competitions on Tamil television channels Zee Tamil, Jaya TV, Raj TV and Sun TV before he entered into the mega Airtel Super Singer show on Star Vijay which made him popular in India and overseas.
Split into simpler sentences: Diwakar participated in musical competitions on Tamil television channels Zee Tamil, Jaya TV's, Raj TV and Sun TV. He participated in the mega Airtel Super Singer show on Star Vijay which made him popular in India and overseas.