The naked body of an unidentified woman in her 40s was found in the national capital on Thursday evening, police said.A police official told IANS they got a call around 5 p.m. that the unclothed body of a woman was lying near Pahla Pusta fish market in New Usmanpur area in north Delhi.A police team immediately reached the spot, and sent the body to the GTB Hospital for a post-mortem examination.The identity of the woman has not been established yet, the official said."There was no injury mark on the body. The reason behind the death can only be ascertained after the post-mortem examination. Our investigation is on," the official added.