The movie has 14 songs, 11 composers and 3 cameramen. The music have been created in collaboration with famous Indian indie bands like Thaikkudam Bridge, Masala Coffee, Agam and Filter Coffee.
With several people criticized the climax of the last part, The World of Rudra.
The climax of the Malayalam version has now been allegedly changed without the consent of the director. Bejoy took to Twitter to express his concern over the new climax. "For all those asking about the changed ending. It has been done without my knowledge and consent. Good or bad I stand by the film I made," he tweeted.
In each part out of four the movie expresses it with a special color tone. In Shekhar - Blue (Water) In Trilok - White (Air) In Shiva - Red (Fire) In Rudra - Green(Earth)
The film focuses on four different characters whose past is also winded to four years back for the necessity of the plot.
Dulquer Salmaan plays the four protagonists in four different avatars.