"Deeply saddened by the bus accident in Kullu. Condolences to the families of those who lost their lives. I hope the injured recover soon. The Himachal Pradesh Government is providing all possible assistance that is required," the prime minister's office tweeted quoting Modi.
Expressing his heartfelt condolences to the families of those killed in incident, Gandhi asked Congress workers in the area to help the victims.
"I am sad over the bus accident in Kullu in Himachal Pradesh. I express my heartfelt condolences to the families of those killed in this accident and pray for early recovery of the injured. I urge Congress party workers in the area to help the affected people," he said in a tweet in Hindi.
At least 32 people were killed and 28 severely injured when an overloaded bus fell into a deep drain in Kullu district of Himachal Pradesh on Thursday, officials said.
The private bus fell into the over 300-metre-deep nullah near the Dhoth Morh in Banjar tehsil of the district, Kullu Superintendent of Police Shalini Agnihotri said, adding that the vehicle was en route Gada Gushaini.
Chief Minister Jai Ram Thakur has ordered a magisterial inquiry into the incident, an official said, adding that he also asked the administration to provide best possible medicare to the injured passengers.