As NIA is unsatisfied with the answers of SP Salwinder, they might hold a polygraph test of SP Salwinder to know the truth. Zee News is the highly popular Hindi .<br />Gurdaspur SP Salwinder Singh arrived at the National Investigation Agency (NIA) headquarters for questioning in connection with the Pathankot airbase terror .<br />The NIA has summoned Gurdaspur SP Salwinder Singh for questioning on 11th January for questioning. Sources reveal that Gurdaspur SP may be put through .<br />Zee Media Corporation Ltd (ZMCL), Indias largest news network, touches the lives of over 150 million Indians through a clutch of national and regional news .
