Rescue operations continued through the night to find survivors after two boats collided on the Brahmaputra river in Assam's Jorhat.
A woman has died and around 30 people are missing after one of the boats reportedly carrying 70 passengers capsized following the collision on Wednesday.
Prime Minister Narendra Modi said "all possible efforts are being made to rescue the passengers."
One of the boats, a government passenger ferry of the Inland Water Transport department, was coming from Majuli (a river island in the Brahmaputra River) to Nimati Ghat while the other boat was going in the opposite direction.
Assam Chief Minister Himanta Biswa Sarma directed the district administration of Majuli and Jorhat districts to undertake rescue mission expeditiously with the help of NDRF and SDRF teams. He will visit the incident site today.