Complex sentence: Biswajit (full name Biswajit Chatterjee) is an Indian film actor who originally hails from Calcutta, West Bengal but later went over to Bombay to do some memorable Hindi films.
Split into simpler sentences: Biswajit (full name Biswajit Chatterjee) is an Indian film actor. He was born in Calcutta, West Bengal, but later went over to Bombay to do some memorable Hindi films.