The accused have been identified as Sandeep Singh (28), who himself is a staff at the MCD toll booth in Rajokari, and Dinesh Kumar (31).
The accused had allegedly threatened the toll booth officials with a gun on Monday night and robbed around Rs 1,20,000 cash, of which Rs 52,500 have been recovered by the police, said DCP (southwest) R A Sanjeev.
On being chased by four toll officials, the accused abandoned their motorbike and fled the spot. The registration numebr of the bike helped police track them down, said police.