The 45 Indian pilgrims aboard the bus were returning to Gorakhpur in India after visiting the Pashupatinath temple in Kathmandu.
Two people died and as many as 33 people were left injured in Himachal Pradesh's Solan when a state transport bus fell into a gorge on Sunday morning.
The inhospitable weather conditions and hostile terrain coupled with darkness hampered relief and rescue operations.
Among the dead were two children and many of the injured are in a critical state, the police said.
A private bus collided with a trailer on NH 6 in Howrah district on Monday.
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