Delhi police have arrested a 27-year-old man for allegedly sexually assaulting a woman in the Govindpuri area in the national capital.

Police said the accused, identified as Lalu Kumar, a resident of Patna in Bihar, was a friend of the 25-year-old victim.

The incident came to light on October 19 when the victim was found lying injured under a foot over-bridge at Harkesh Nagar.

She was then immediately taken to the All India Institute of Medical Science (AIIMS).

The woman’s husband said that his wife was missing since October 18 from her home under suspicious circumstances when he and his son had gone to attend a birthday party in Tughlakabad village.

He did not report the matter and searched at his own level, police said.

During the investigation, CCTV footage and technical surveillance revealed that the victim left her home alone and was seen with Lalu Kumar — the accused — at Govindpuri metro station, police said.

“Later, it was found that Lalu Kumar, who works at a hardware shop in Govindpuri, was missing. He went to his home without informing anyone. Police went to Patna and arrested him from his village,” DCP (southeast) R P Meena said.

During interrogation, the accused claimed that he was in a relationship with the victim.

Police said on the intervening night of October 18 and 19, they both went to Chandiwala park, where he sexually assaulted her.