The two arrested were on Wednesday identified as Kalpana Pariyar, 33, a resident of Bahuni in Morang district of eastern Nepal, and Jeet Bahadur Darji, 42, who hails from Baglung district in western Nepal, police said on Thursday.
Kalpana and Jeet were involved in selling the former's mother-in-law and another woman to Indian agents on the pretext of providing them attractive jobs.
The two maids were then supplied to Saudi diplomat Majed Hassan Ashoor, who allegedly kept them in confinement in his apartment in Gurgaon in Haryana where he and his "guests" allegedly raped them.
On September 7, Gurgaon Police conducted a raid at the diplomat's residence after receiving a complaint from a non-governmental organisation and rescued the two Nepalese women.
The Saudi Embassy termed the allegations as "false" and protested the police "intrusion" into the diplomat's house saying it was against "all diplomatic conventions".
The two maids have now been shifted to a women's shelter in Nepal.
The Saudi Arabian diplomat, who was charged with confinement and rape of two Nepalese women, last night left India.
The Central Investigation Bureau of Nepal has filed a case in this regard in Kathmandu District Court registering a case under Human Trafficking Act.
Further investigation is underway in this matter and the police are searching other people involved in the racket, police said.