Common GST Electronic Portal designated as official platform for state GST registration, payment, returns, integrated tax settlement and e way bill. The West Bengal GST notification designates www.gst.gov.in as the Common GST Electronic Portal to facilitate electronic registration, payment of tax, return filing, computation and settlement of integrated tax, and electronic way bill functions, and identifies the site as managed by the Goods and Services Tax Network company, with the notification specifying its commencement date.