How often are petrol and diesel prices updated in India?

Petrol and diesel prices in India are updated daily at 6:00 AM IST. This system is known as dynamic fuel pricing (or daily price revision), which ensures that even minute variations in international crude oil prices and currency exchange rates are reflected in retail prices.

Why do petrol and diesel prices vary from state to state?

Fuel prices vary across states due to local taxes (Value Added Tax or VAT) levied by different state governments. In addition, transportation/freight costs from oil refineries to retail pumps in different regions also contribute to the price differences.

Is GST (Goods and Services Tax) applicable on petrol and diesel?

No, petroleum products (petrol, diesel, crude oil, natural gas, and aviation turbine fuel) are currently excluded from the GST regime. Instead, they are subject to Central Excise Duty and State VAT.

Who determines the daily petrol and diesel prices in India?

State-run Oil Marketing Companies (OMCs) — namely Indian Oil Corporation Limited (IOCL), Bharat Petroleum Corporation Limited (BPCL), and Hindustan Petroleum Corporation Limited (HPCL) — determine the prices daily based on the average international rate of crude oil and foreign exchange rates.

How can I calculate my monthly fuel cost?

You can easily estimate your fuel expenses using our free online Fuel Cost & Mileage Calculator. Simply input your total travel distance, your vehicle's mileage, and the current price per liter in your city to get instant results.

Why is petrol price different across cities in Tamil Nadu?

Even within Tamil Nadu, petrol and diesel prices vary slightly between districts. This variation is mainly due to freight charges and transportation costs involved in delivering the fuel from local oil depots or refineries to the petrol pumps in that specific district.

What taxes are levied on fuel in Tamil Nadu?

Fuel retail prices in Tamil Nadu consist of the base price, dealer commission, Central Excise Duty, and the Tamil Nadu State Value Added Tax (VAT). State VAT is percentage-based, making it one of the largest components of the retail price.

Today Petrol & Diesel Price Chennai, Tamil Nadu [July 25, 2026]

Petrol Price

₹109.10

Up from ₹107.76

Diesel Price

₹100.92

Up from ₹99.55

Prices were last updated on July 25, 2026 12:46 AM

Frequently Asked Questions

Check the district-wise table on this page for the latest petrol price in Chennai. Prices are updated daily at 6:00 AM from official OMC bulletins and may vary by pump.

Diesel prices in Chennai, Tamil Nadu are revised daily. Use the table above to see the live diesel rate for Chennai.

Local taxes, transportation cost from depots, and dealer commission cause price differences between Chennai and neighbouring towns. State VAT also affects final price.

Use the historical prices link on this page or contact us via the Contact page to request past price snapshots for Chennai. We store daily rates for reference.

Fuel prices are normally updated once every 24 hours by Oil Marketing Companies (IOCL, BPCL, HPCL). We publish the official revision on this page.

Use our Fuel Calculator to estimate monthly costs based on today's petrol and diesel prices in Chennai; enter your mileage and fuel efficiency for a personalised estimate.

Understanding Fuel Prices in Chennai

Are you wondering why petrol and diesel prices in Chennai, Tamil Nadu differ from neighboring areas? Here is a simple breakdown of how local prices are determined.

Local Transport Cost

The distance from the nearest oil refinery to Chennai's fuel stations directly impacts the final price due to freight charges.

Dealer Commission

Local petrol pump owners in Chennai receive a fixed commission per liter to cover their operational costs.

Dynamic Pricing

Prices are updated every morning at 6:00 AM. Global crude oil rates and the Rupee-Dollar exchange rate play a major role.

Pro Tip for Chennai Residents: Use our Fuel Calculator to estimate your exact monthly travel expenses based on today's live prices in your city!

Today Petrol & Diesel Price Chennai, Tamil Nadu [July 25, 2026]

Petrol Price

₹109.10

Diesel Price

₹100.92

Frequently Asked Questions

Understanding Fuel Prices in Chennai

Local Transport Cost

Dealer Commission

Dynamic Pricing

Other Districts in Tamil Nadu

Latest Fuel News

Related Tools

Today Petrol & Diesel Price Chennai, Tamil Nadu [July 25, 2026]

Petrol Price

₹109.10

Diesel Price

₹100.92

Frequently Asked Questions

What is the petrol price in Chennai today?

What is the diesel price in Chennai, Tamil Nadu today?

Why do fuel prices differ across nearby cities from Chennai?

How can I find historical petrol prices for Chennai?

How often are prices updated in Chennai, Tamil Nadu?

How do I compare petrol and diesel costs for commuting in Chennai?

Understanding Fuel Prices in Chennai

Local Transport Cost

Dealer Commission

Dynamic Pricing

Other Districts in Tamil Nadu

Latest Fuel News

Related Tools