Highlights In Delhi, CNG retail price has been increased from Rs 43.40 per Kg to Rs 44.30 per Kg. In Nodia the price of per Kg CNG has been hiked from Rs 49.08 to Rs 49.98. The increase in the CNG prices has come at a time when petrol and diesel prices have reached their record highs across the country. New Delhi: With the rising fuel prices across the country, Indraprastha Gas Limited (IGL) on Thursday (July 8) announce the hike in retail rates of compressed natural gas (CNG) in Delhi and two nearby satellite cities: Noida and Ghaziabad. In Delhi, CNG retail price has been increased from Rs 43.40 per Kg to Rs 44.30 per Kg while in Nodia the price of per Kg CNG has been hiked from Rs 49.08 to Rs 49.98. CNG prices in Ghaziabad are similar to prices in Noida.