Section 2(1)(c) in The Petroleum and Natural Gas Regulatory Board (Authorizing Entities to Lay, Build, Operate or Expand City or Local Natural Gas Distribution Networks) Regulations, 2008
(c)"authorized area" means the specified geographical are for a city or local natural gas distribution network (hereinafter referred to as CGD network) authorized under these regulations for laying, building operating or expanding the CGD network which may comprise of the following categories, either individually or in any combination thereof, depending upon the criteria of economic viability and contiguity as stated in Schedule A, namely:-(i)geographic area, in its entirety or in part thereof, within a municipal corporation or municipality, any other urban area notified by the Central or the State Government, village, block, tehsil, sub-division or district or any combination thereof: and(ii)any other area contiguous to the geographical area mentioned in sub-clause (i):