The incident happened when the deceased, identified as Kavita, was alone at her residence. Her children were at a relative's home while her husband was out for work.
"As per eyewitnesses, her nephew Raja (21) barged into the house and started an argument with her. At point, he took out a pistol and fired a bullet at Kavita which hit her in the wrist. He then strangulated her.
The police received a call at 9 am after which a team reached the spot and sent the victim to Lal Bahadur Shastri Hospital where she was declared brought dead. A case of murder has been registered at Kalyanpuri police station, said a police official.
Kavita is survived by her husband Ravi and two children. Her husband works as a fourth class employee with the Municipal Corporation of Delhi.
Efforts are on to apprehend Raja. Several police teams are conducting raids in different areas in his pursuit, police said.
