Compressed natural gas (CNG) prices in the national capital were increased by Rs 1 per kg on Saturday, marking the third hike in less than two weeks amid rising energy costs and pressure on fuel markets. With the latest revision, the retail price of CNG in Delhi has risen from Rs 80.09 per kg to Rs 81.09 per kg, according to Indraprastha Gas Limited (IGL). The increase comes at a time when petrol and diesel prices have also been revised upward across the country, adding to concerns over rising transportation and household expenses. Third CNG price increase in 10 days This is the third upward revision in CNG rates since May 15. Earlier, prices were increased by Rs 2 per kg on May 15, followed by another Re 1 per kg hike on May 17. In total, CNG prices in Delhi have gone up by Rs 4 per kg within 10 days. Neighbouring cities in the National Capital Region (NCR) also witnessed revised prices. CNG in Noida, Greater Noida and Ghaziabad is now retailing at …