Diesel consumption in Delhi has come down by about 40,000 tonne to 1.2 million tonne (mt) during 2000-01 on account of increased consumption of compressed natural gas (CNG).While CNG sales in the city have almost doubled to 1.92 lakh kg per day in June from 99,000 kg per day in March, as per the unconfirmed estimates diesel sales have further fallen by more than 10 per cent during the first three months of 2001-02. Interestingly, the total gas sale in the 12-month period from December 1999 to December 2000 was only 2 lakh kg.