Metropolitan Magistrate Gomti Manocha granted bail to the three people, asking them to furnish a personal bond of Rs.30,000 each and sureties of a like amount.
The legislator from Delhi Cantonment constituency was booked under relevant sections of the Scheduled Castes and Scheduled Tribes (Prevention of Atrocities) Act on August 5, a few hours after attacking the NDMC employee.
Surinder Singh was also charged with obstructing a government official from performing his duty and threatening his life under relevant sections of the Indian Penal Code.
The incident took place when the legislator intervened in a routine checking drive by the NDMC in Tughlaq Road area of New Delhi.
Police said fourth-grade NDMC employee Mukesh was beaten up by the legislator when Mukesh along with an official team was trying to clear the footpath occupied by hawkers.