According to India Today, the bus carrying 28 pilgrims was traveling from the central Indian state of Madhya Pradesh to the holy city of Yamunotri in the Himalayas, when it suddenly fell into the gorge.
At the moment, the police and the State Disaster Response Force (SDRF) are conducting a rescue operation at the scene, the news agency reported. The local authorities launched an investigation into the accident.
Indian Home Minister Amit Shah reportedly expressed his deep condolences over the death of the pilgrims.
"It is very sad to hear about the bus of devotees falling into the gorge in Uttarakhand. I have spoken to the Chief Minister Pushkar Dhami on this. Local administration and SDRF teams are engaged in rescue work and the injured are being taken to a nearby hospital for treatment," Shah wrote on Twitter, as translated by India Today.
Indian Prime Minister Narendra Modi announced the payment of compensation worth 200,000 rupees ($2,500) to families of the victims, and 50,000 rupees ($644) to those injured, according to the news agency.