Complex sentence: In 2000 Devgn set up a production company known as Ajay Devgn Films Production, which released its first film "Raju Chacha in 2000," starring Devgn as the lead actor and his wife Kajol as the lead actress.
Split into simpler sentences: In 2000 Devgn set up a production company known as Ajay Devgn Films Productions. The movie was released in 2000, starring Devgn as the lead actor and his wife Kajol as the lead actress.