Complex sentence: Kapil then shifted to Mumbai where he worked with Reliance (Reliance Big Pictures) who coproduced his first show Shakira in which he portrayed a police officer named ACP Abhay Singh on the bindas channel.
Split into simpler sentences: Kapil then shifted to Mumbai where he worked with Reliance (Reliance Big Pictures). He portrayed a police officer ACP Abhay Singh on the bindas channel.