The bail was granted as Nagar's daughter is getting married on November 3.
Nagar (53) has been accused of raping the woman at his residence on September 11 last year on the pretext of giving her a government job.
Nagar resigned from the Cabinet two days after the FIR was registered against him on September 17.
The former Minister of State for Dairy and Khadi Gramodhyog was arrested on October 25, 2013 and is currently lodged in the Jaipur Central Jail.