The Delhi High Court on Friday ordered the immediate release of former Youth Congress leader Sushil Kumar Sharma, who is serving a life term in the 1995 murder of his wife Naina Sahni.A Bench of Justices Siddharth Mridul and Sangita Dhingra Sehgal allowed the plea filed by Sharma seeking his release.The Sentence Review Board had rejected Sharma's plea seeking premature release, saying that he had been convicted for the brutal killing of his wife.Sharma's advocate Amit Sahni told the court that Sharma is in prison since 1995 and has already undergone the maximum prescribed sentence.Congress worker Naina Sahni was murdered on July 2, 1995 night. Her husband Sushil Sharma shot her, chopped up her body and tried to burn it in the tandoor of a restaurant.