Jind district police chief Sourabh Singh Wednesday said police were interrogating the duo and would soon arrest the main accused, Sandeep, who was still at large.
The victim had complained last Friday that three men raped her at gunpoint after forcibly entering her home.
"After her complaint, a special investigation team was constituted. Police have arrested Suraj and Azad, father of main accused Sandeep," Singh said.
The victim, who is in her mid-30s and is the mother of two children, and her husband Wednesday threatened to commit suicide outside the office of the superintendent of police here, alleging that Haryana Police were deliberately not taking any action against the accused.
In her complaint to the police, the victim said three youths entered her house Sep 21 (Friday) and raped her at gunpoint in the presence of her children.
"I filed a complaint with the police Sep 21 itself. The accused are roaming free but the police are not taking any action," the victim said.
Police registered a case of rape following her complaint but did not make any arrest.
The gang-rape of the married woman came close on the heels of another gang-rape of a teenaged Dalit girl by eight men in Hisar district earlier this month.
In neighbouring Hisar district, the father of a 16-year-old gang-rape victim committed suicide by consuming poison Sep 18 after he came to know that his daughter was gang-raped Sep 9 near Hisar by eight youths, who later circulated an MMS clip of the crime.
In that case, police have made nine arrests till Wednesday.