Petrol prices in Chandigarh are determined by the Indian Oil Corporation Limited (IOCL). This is the largest commercial enterprise in India, and is responsible for the production and distribution of petroleum, natural gas, and other petroleum products in the country.

Petrol prices in Chandigarh, like other cities in India, are revised every fortnight. This means that the prices are updated every 15 days. The prices are based on the international crude oil prices, and the local taxes imposed by the government.

In Chandigarh, the petrol price per litre is generally around Rs. 70-80. This is slightly higher than the average across India but this is due to the higher taxation rate in Chandigarh. Additionally, the prices may also vary from petrol pump to petrol pump due to the various taxes and levies imposed on the petrol.