Managing director of Unitech, Sanjay Chandra, an accused in the 2G spectrum case, was a director in some of the alleged Unitech group firms, which were later merged together to form Unitech Wireless (Tamil Nadu) Pvt Ltd, a Registrar of Companies (RoC) official told a Delhi court on Tuesday. Deposing as a prosecution witness, RoC's deputy registrar Prem Lal Malik told the Central Bureau of Investigation judge that Chandra was the director of the alleged group companies of Unitech Group — Aska Projects Ltd, Adonis Projects Pvt Ltd, Hudson Properties Ltd and Volga Properties Pvt Ltd.