"The Association of Small Bombs" is about the nullity and grief that binds terrorists and their victims.
Shortly after the 26/11 Mumbai attacks, Mahajan began thinking intensely about this blast at Lajpat Nagar market, near where he grew up.
"I don't know why the memory of the blast came to me then, or why it seemed urgent, but I decided to pursue it. I didn't know then that it would become a way to write about a 15-year period of terror," says Mahajan, whose first novel "Family Planning" was a finalist for the Dylan Thomas Prize in 2010.
"The Association of Small Bombs" is also an exploration of the Khurana and Ahmed families coping with the after effects of the traumatic but forgotten tragedy. Woven with their story is the tale of Shockie, a Kashmiri bomb-maker who forsakes his own life for the independence of his homeland.
Mahajan says the stories in "The Association of Small Bombs" are researched but not real. The book, published by HarperCollins India, is scheduled for release next year.