Complex sentence: The main protagonist of the film is Nilkantha where character Ritwik Ghatka played in hi autobiographical film Jukti Takko Aar Gappo had the same name.
Split into simpler sentences: The main protagonist of the film is Nilkantha. The autobiographical character played by Ritwik Ghatka played in the film Jukti Takko Aar Gappo had the same name.