Kurumbang said the bodies of nine mem and seven women were sent to Bhairahawa after post mortem examination.
The bus met with the accident while it was heading to Krishnanagar of Kapilvastu from Bhingri in Pyuthan.
Most of the passengers were Indian pilgrims returning from the Swargadwari Temple in west Nepal, a popular pilgrimage site for Hindus.
Meanwhile, the Indian embassy sent a team to the accident site to coordinate with the local authorities in the rescue operation, the embassy in Kathmandu said in a statement.
"A joint rescue team of Armed Police Force, Nepal Army and Nepal Police have been carrying out rescue operations at the accident site," the embassy said.
Syed Akbaruddin, spokesperson for India's external affairs ministry in New Delhi, said in a tweet Tuesday: "India's mission coordinating arrangements at Bhairahawa in Nepal to ensure all assistance to relatives of pilgrims killed in bus accident."
