New Delhi: A 70-year-old woman, a retired Delhi Jal Board (DJB) employee, was found dead at her residence in Chawla Friday afternoon.The deceased lived with her son. The incident came to light after police received a call from neighbours who reported a foul smell emanating from the house.A team from the local police station rushed to the spot and shifted the woman to a hospital, where doctors declared her dead. Police said no foul play has been suspected so far, though the body has been sent for a postmortem examination to ascertain the exact cause of death. They are questioning her son to ascertain the circumstances leading to her death while awaiting the postmortem report.