The beautician told police that she, along with an assistant, went to the MP's Lodhi Estate residence on call.
She claimed that the MP's wife asked her to do some household work and when she refused, she was abused.
This led to a heated argument during which the lawmaker's wife allegedly assaulted her, a police official said.
The beautician and her assistant then went to the Tughlaq Road police station and lodged a complaint. However, no FIR has been registered so far, the official said.