New Delhi, Dec 14 (IANS): A 56 year-old woman was found dead inside her flat in north Delhi's Shalimar Bagh area on Wednesday, police said, adding that they are investigating the incident from all angles, including if it was a robbery bid.

A senior police official said that as per statements and based on facts, a case under section 302 (murder) of the Indian Penal Code (IPC) has been registered at Shalimar Bagh police station and police teams are scanning CCTV cameras in the area to ascertain the sequence of the crime and to identity the culprits.

According to police, on December 13, at around 10 p.m, a police control room (PCR) call was received that the caller's flat was locked from outside and phone of his mother there was switched off.

"A police team immediately reached the spot and found that complainant, Chetan Madan broke through the gate of his flat, with the help of neighbours and found her mother, Rajni Madan, dead inside the house," said the official.

On enquiry, Madan told police that he went to his office in the morning and when he returned at around 10 p.m, he found his flat locked from outside and after breaking the lock, he found his mother dead inside the house.

"Prima facie, no external injury was found on her body and entry in to the flat was friendly. Post mortem was conducted in the hospital and a report is awaited," said the official.