Virtual hearing of all demand notices relating to indirect taxes including goods and services tax (GST) can be done through Whatsapp, authorities in Thane tax zone said a notice while issuing standard procedure for conducting the hearings.The decision has been taken due to situation arising from Covid 19, and the mandatory guidelines from government on maintaining social distancing norms.“Keeping in view the situation arising due to Covid 19, it has been decided to conduct personal hearing in respect of all demand notices through video conferencing,” the notice dated May 18, said.