"A Concept Paper on NATIONAL GAS MANAGEMENT SYSTEM."Date:31/08/2009
"Acceptance of Central Govt. Authorization for Vijaywada CGD Network (Vijaywada GA)."Date:26/08/2009
"Acceptance of Central Govt. Authorization for Mumbai CGD Network(GA-2) (Mumbai GA-2)."Date:26/08/2009
"A Concept Paper on NATIONAL GAS MANAGEMENT SYSTEM."Date:31/08/2009
"Acceptance of Central Govt. Authorization for Vijaywada CGD Network (Vijaywada GA)."Date:26/08/2009