Bishnupur, Bengal-born Mandal, a New York-based photographer, was taking pictures of a meeting convened by the Bharatiya Janata Party candidate from Tamluk, Rajyashree Chowdhury, when he was attacked.
The mob beat him up, smashed his cameras and took away his camera cards. Nandigram is part of the Tamluk Lok Sabha constituency.
Mandal, who was hurt in the attack, is now recovering from his injuries.
Images: An injured Jay Mandal with his damaged camera.