Anil Kumar, 26, a cable operator tried to rape the woman finding her alone at her house in south Delhi's Lajpat Nagar around 8.30 p.m. Monday, said the officer.
"Kumar went to the woman's home to collect monthly rent for the cable TV. Finding the woman alone, he tried to rape her. He inserted an iron rod inside her mouth when she was crying for help," said the officer.
Hearing the woman's voices some neighbours came to help her but Kumar managed to flee from the spot. He was later arrested.
The woman was rushed to All India Institute of Medical Sciences (AIIMS) where her condition is critical, said the officer.