A man has been arrested in connection with the murder of Congress worker Himani Narwal, whose body was found in a suitcase on Saturday, sources said. Her mobile phone and jewellery were also recovered from him, according to sources. The body of Narwal, who was said to be in her late 20s, was found stuffed in a suitcase in Rohtak, following which the Haryana Police set up a special investigation team (SIT) to probe the murder.