A 65-year-old woman was robbed of cash and jewellery worth lakhs and murdered by unidentified assailants on Wednesday night. The incident took place around 8.30 pm in the West Patel Nagar of central Delhi, the police said. Prima facie it appears that there was a friendly entry in house. Police are suspecting the role of an insider in the commission of crime. The victim was taken to a nearby hospital where she was declared dead on arrival.