The police made the claim saying it was revealed in the ongoing probe into the suicide.
Prabhakar, 32, posted at Kuknoorpally police station, was found lying dead on a chair in his official residence.
The police suspects the SI might have killed himself after learning about the woman's death as he was apparently scared of the "consequences."
The police today arrested two men, including the owner of a studio where she worked, and his acquaintance, on the charge of abetting the suicide of the 29-year-old married woman.
More From This Section
As per the preliminary probe conducted by the Hyderabad police, the beautician was having an affair with Rajeev who was in a relationship with another woman, who got a whiff of the affair and was angry.
According to police, Sravan had tried to broker peace by taking Rajeev and the two women to Prabhakar "to resolve the matter," when the latter allegedly tried to sexually assault the beautician.
"B Sravan Kumar and V Rajeev Kumar, the owner of a photo studio in Jubilee Hills here, where the woman was found dead in suspicious circumstances on June 13, were today arrested," Hyderabad Police Commissioner M Mahendar Reddy told reporters here.
Assuring them to resolve the matter, Sravan, who is known to Rajeev and the beautician, took them to Prabhakar at his residence in Siddipet on the night of June 12.
The woman, who broke into tears while on their way to Hyderabad, quarrelled with them even as Rajeev punched her in face and abdomen. After reaching Rajeev's house-cum-studio, the woman locked herself in the room, he said.
"Rajeev called her up, but after getting no response he broke open the door only to find her hanging from the ceiling fan with a scarf. He informed the police about the incident," Reddy said.
After probing the links, police found that Prabhakar had allegedly attempted to sexually assault the woman.
Based on the evidence collected and the post-mortem examination report, the section in the case was altered to 306 (abetment of suicide) of IPC.
"The investigation done so far and prima facie evidence disclosed that the woman had felt humiliated and insulted by the acts of Sravan, Rajeev, who had taken her to Prabhakar, who, in turn, had made sexual advances towards her and their acts drove her to suicide," the top cop said.