'Khel Khallas' is all about the mafias of Mumbai and the documented stories of the key characters who played an important role in it. The book has a collection of gangsters, pawns, and informers that highlights the many untold aspects of Mumbai's Mafia universe with such facts which the world is still not aware of. Also it contains information and photographs of Mumbai's infamous Mafia donors, their wives and loved ones, relatives, colleagues, their houses and bases.
Vivek Agarwal is working as a journalist mainly in crime, law, army and terrorism field since last three decades. He started his career as a rural journalist in Madhya Pradesh. Then he came to Mumbai for more opportunities. Now a days, he is an advisor to a magazine of Kolkata and also a part of investigation portal.