The bus, on way to Barpeta from Guwahati hit the motorcyle which was coming from Tihu towards Nalbari at Banekuchi on National Highway 31.
The injured have been identified as Sachin Talukdar and Mathur Sarma of Tihu and they were immidiately admitted at the Nalbari Civil Hospital.
Sachin, in a critical condition, was referred to Guwahati Medical College Hospital.