According to reports, in 2011, a woman had filed an FIR against her husband and his associates of sexually exploiting her.
In her police complaint, she had alleged that her husband drugged her after which she was raped by his associates including Nihalchand.
The case was closed in 2012 as charges were not proved, but later the woman appealed in the district court.
On Thursday, the court issued notices to now minister Nihalchand and 17 others in the case and have asked them to respond by August 20, this year.
43-year-old Nihalchand is a four-time MP from the Ganganagar constituency of Rajasthan. He is the son of Begaram Chauhan, an MLA from Raisinghnagar assembly seat.
During Lok Sabha elections 2014, Nihalchand had defeated Congress candidate Bhanwarlal Meghwal.
Now, it is to be seen what action Prime Minister Narendra Modi will take against Nihalchand, who started his political career in 1995, if he is proven guilty in the case.