Puran Rai, 18, of Sankhuwasabha and Biren Limbu, 24, of Thinglavu-4, Taplejung are in critical condition and undergoing treatment in Dharan, police said. Others are being treated at Ilam District Hospital.
Ten passengers who were slightly injured in the accident have returned home after treatment.
Police have taken the bus driver Rana Bahadur Rai of Anarmani-3, Jhapa, under control.
Over 45 Nepali pilgrims injured in bus accident in India (Updat...