Two of the seriously injured passengers have been sent to a hospital in Aligarh while the others are undergoing treatment in Badaun.
One of the buses is from Bulandshahr depot, while the other is from Kaushambi depot, said Gunnaur Sub-Divisional Magistrate Amit Kumar.
"The deceased have been identified as 40-year-old Subodh Kumar and 35-year-old Pappu," he added.