Nilanjana Roy is a Delhi-based journalist, literary critic, editor and author. She has written and reviewed for numerous publications including the Guardian, New York Times and Huffington Post, and has a weekly column in the Financial Times, and her novel The Wildings was shortlisted for the Waterstones Children's Book Prize.

Black River is Nilanjana's debut thriller. It grew out of her years of reporting on gender from New Delhi and the surrounding states for the New York Times, and from exploring the capital and the Yamuna river on long walks.