Sabu's biggest enemy is Raka, who is of the same size as that of Sabu, and is immortal, thanks to a special Ayurvedic medicine he accidentally consumed. Raka and Sabu are both strong but Sabu always wins in their fights. Since Sabu can't kill Raka, he always leaves him at a place where he cannot bother humanity. However, somehow Raka manages to escape and wreak havoc upon return. This has resulted in a series of comics on Raka, which have been very popular and well received.