The situation in the North-east has grown more critical with landslides and floods claiming 30 lives, and completely cutting off North Sikkim from the rest of the country.
The highest death toll has also been reported from Sikkim, where landslides have killed 27 people in just 48 hours. CNN-IBN reported that 21 bodies including those of Indo-Tibetan Border Police and the Border Roads Organisation personnel have been recovered in the state.
They were declared missing on Sunday.
The worst affected region is Northern Sikkim, which has also been cut off from the rest of the country because of landslides. Nine slides have blocked off the road between Chunthang and Mangan, while National Highway 31A is also cut off.
BRO officials have said that it could take as long as a month to restore connectivity.
Chungthang SDM Raj Yadav said, "The major challenge is providing water and electricity. We will distribute water to every house using water tankers. A few generators have been put into service to light street lamps. Kerosene will be provided to houses tomorrow."
In Assam, heavy rain has triggered a third wave of floods. Sixteen districts are badly hit and six people have died, while as many as eight lakh people are believed to be affected. Three wildlife sanctuaries including the Kaziranga National Park are under water. Thousands have been fleeing to relief camps.
Rescue operations are on, and the Army and IAF have evacuated more than 4,000 people from the affected areas.