"The three constables - Manjeet Singh, Kuldeep Singh and Jasveer Singh - have been suspended and arrested," SSP Gulab Singh said today.
The incident occurred on Monday when Arun alias Fauzi was being escorted by the three police constables for a hearing in Bharatpur of Rajasthan on a government bus, police said.
As soon as the bus left Mathura and took the highway, Arun's accomplices fired in the air and took keys of the handcuffs from the policemen and took him away, they said.
The SSP said there had been no clue on the whereabout of the undertrial so far, even though four police teams had been formed to nab him.