Due to the Rs 21-25 per kg spurt in prices by city gas distribution (CGD) companies over the last six months, the price gap between petrol, diesel and compressed natural gas (CNG) has narrowed. On comparing, it is worth noting that the petrol and diesel prices have gone up by Rs 10 per litre, and many CGD companies like Gujarat Gas, Mahanagar Gas, and Indraprastha Gas have taken large increases in CNG prices. The price gap has narrowed due to high natural gas prices, while the CGD sector is able to get only 85 per cent of the allocated gas from domestic gas fields. Due to this, many CGD operators have to buy expensive liquified natural gas to meet the shortfall. This led to the costs being passed on to the consumers and prices being revised consistently.