Punjab MLA Gagandeep Singh Barnala, son of Tamil Nadu Governor Surjit Singh Barnala, was on Saturday night arrested for raping his maid servant in his MLA hostel residence in Sector-3.
The 45-year-old servant complained to the police that she was raped by the MLA in his residence.
The woman was admitted to the General Hospital Sector-16 at about 2.30 pm for medical examination.
After the preliminary investigation, the Chandigarh police registered a case under Section 376 of the IPC and arrested Gagandeep, a SAD MLA from Dhuri.
Police said they are going ahead with investigations and action will be taken as per law. The 44-year-old MLA is a graduate and is married.
He had been elected MLA for the first time.
Earlier, hectic parleys were on to woo Surjit Singh Barnala, ex-chief minister of Punjab, for formation of a third front in Punjab under his leadership by some of the estranged Akali leaders.