The Centre has already sent inter-ministerial teams to Himachal Pradesh to assess the extent of damage, and based on their detailed report, further assistance will be considered.
More than 300 residents are stranded in the Bada Bhangal village, where floodwaters have swept away the panchayat ghar, government primary and high school buildings.
In another incident a truck skidded and fell into a gorge near Juni village on the Mandhar-Palyar Road in Shimla district; both occupants are said to be safe.
The flash floods triggered by a cloudburst hit the higher reaches of Rishi Dogri Valley in Kinnaur district on Wednesday evening, and the bridge across the Sutlej river was inundated.