'My daughter Siya was kidnapped. Nine months ago, ' Alia said.

The police had given up. They called it a cold case. Even the rest of her family had stopped searching.

Alia wouldn't stop looking, though. She wanted to know if I could help her.

Hi, I am Keshav Rajpurohit and I am a disappointment to everyone around me. I live with my parents, who keep telling me how I should a) get married, b) focus on my IPS exams, c) meet more people and d) close my detective agency.

But Alia Arora, neighbour and ex-model, wanted my help. And I couldn't take my eyes off her face ... I mean, her case.

Welcome to 400 Days. A mystery and romance story like none other. An unputdownable tale of suspense, human relationships, love, friendship, the crazy world we live in and, above all, a mother's determination to never give up.

From India's highest-selling author comes a page-turner that will not only keep you glued to the story but also touch you deeply.