A 32-year-old man, Deepak, committed suicide in Haryana's Sonepat district on 16 April and live- streamed the suicide on his Facebook page.
According to the Sonepat SP Ashwin Shenvi, Deepak scribbled the reason on the wall of his room before hanging himself from a ceiling fan.
The man was reportedly facing death threats following which he took the extreme step.
Deepak wrote that he was "facing threat to his life from a married woman in his neighbourhood and her alleged lover after he told her husband about their illicit relationship."
Shenvi said Deepak live-streamed the suicide on his Facebook page. He was alone at the time of the incident as his parents had gone to Mathura. He sent his wife and son to a relative's house before committing suicide.
"The woman and her paramour are employed with the Delhi Police, while her husband is part of the Haryana Police.
"Deepak wrote on the wall that the woman, an ASI, had an affair with an Inspector and after he came to know about it, he narrated everything to her husband," the SP said.
The man wrote that the woman and her alleged lover had threatened to kill him.
Sonepat City SHO Ajay Malik said Deepak's family has filed a complaint based on which an FIR has been registered against the woman and her alleged lover on charges of abetting the suicide.
"A team of Sonepat Police is already in Delhi. The mobile phones of the accused are switched off and the duo are not at their place," he said.
Meanwhile, a relative of the deceased alleged that the accused were harassing Deepak for the past six months.
He claimed that Deepak also wrote a 60-page diary describing what exactly happened, but he could not muster enough courage to approach police.
- - With PTI inputs