Acting on a tip-off, ASI Jamil of the crime branch raided the place near Etmadpur village near Agra Canal where the three were found conspiring to rob people.
The arrested were identified as Maksood, Sirazuddin and Jaipal, all residents of Bismara village in Mathura district.
A country-made pistol has been recovered from their possession.
A case has been registered with Sector 31 police station under relevant sections the IPC and the Arms Act.
Mohammad Rafiq, investigating officer said that the police are expecting to crack old cases of robbery by the gang.
The police arrested Pyarelal and recovered the country made pistol of .32 bore which he was carrying illegally.
A case has been registered at Ballabgarh Sadar police station under the Arms Act.