Apparently irked over objection by a policeman to their alleged indecent act at a public place, a young couple knocked down the constable killing him on the spot.
The incident took place on Wednesday night when the police constable saw a car parked in the Golcha compound here.
When he went near the car, he found a couple in compromising position, Cantonment Police Station In-charge, Akhil Varma told reporters on Thursday.
The policeman, Devisingh Paroha, objected to their alleged indecent act in a public place following which the couple got so infuriated that they crushed him under the wheels, killing him on the spot. They sped away after committing the crime.
The two were, however, arrested after a chase.
The police have identified them as Atul Kanojia, a third year student of a private engineering college, and Preeti Jain of the local Home Science College.
A murder case has been registered against them, Verma said.