Three police personnel, including a Head Constable, were injured when their vehicle was hit by another one on Yamuna expressway last night.
"HCP Devendra Singh was admitted in a private hospital and his condition is serious", police said, adding constables Ajeet Singh and Mohan Kumar were allowed to leave the hospital after receiving first aid.
According to police, their patrolling vehicle was in the direction of Noida when an unidentified vehicle hit and overturned it.