New Delhi [India], February 3 (ANI): The Petroleum and Natural Gas Regulatory Board (PNGRB) responsible for granting authorization for developing of City Gas Distribution network, has up to the 10th CGD bidding round, authorized a total of 228 geographical areas (GAs), comprising 407 districts in 27 states and union territories for the development of CGD networks, the government informed the Lok Sabha on Thursday.