Petrol Diesel Price Today, September 12, 2026: Oil marketing companies have released the latest petrol and diesel prices for Saturday, September 12. Fuel rates are updated every day at 6 AM, making it important for motorists to check the applicable price in their city before heading to a petrol pump.

Petrol and diesel prices vary from one city to another because of several factors, including international crude oil prices, the rupee-dollar exchange rate, central and state taxes, refining expenses and local costs. The latest figures show considerable differences across major cities, with petrol costing less than ₹100 per litre in Chandigarh while crossing ₹115 per litre in Hyderabad and Thiruvananthapuram.

Petrol and Diesel Prices in Major Cities on September 12

Here are the fuel prices listed for major cities today:

These prices are based on the figures provided in the supplied report and may vary slightly depending on local dealer-level conditions.

Petrol Price in Delhi Today

In New Delhi, petrol is listed at ₹102.12 per litre, while diesel costs ₹95.20 per litre.

Fuel prices in the national capital remain lower than in several other major metropolitan cities, including Mumbai, Kolkata, Hyderabad and Chennai.

Taxes and local levies are among the reasons retail fuel prices differ from one state or city to another.

Mumbai Petrol and Diesel Rates

Motorists in Mumbai are paying ₹111.18 per litre for petrol and ₹97.83 per litre for diesel today.

Mumbai's petrol rate remains noticeably higher than Delhi's.

Such differences are not unusual because the final price consumers pay at fuel stations includes state-level taxes and other charges in addition to the underlying cost of fuel.

Kolkata and Chennai Fuel Prices

In Kolkata, petrol costs ₹113.47 per litre, while diesel is priced at ₹99.82 per litre.

In Chennai, petrol stands at ₹107.77 per litre, with diesel at ₹99.55 per litre.

This means diesel remains just below the ₹100-per-litre mark in both cities according to the supplied figures.

What Are Petrol and Diesel Prices in Jaipur?

In Jaipur, petrol is priced at ₹112.66 per litre, while diesel costs ₹97.78 per litre on September 12.

These rates make petrol in Jaipur more expensive than in Delhi, Mumbai, Chennai, Bengaluru and several other cities included in the report.

However, the final amount paid by a consumer depends on the quantity purchased rather than simply the per-litre difference.

Hyderabad and Thiruvananthapuram Among Costlier Cities

Among the cities listed in the supplied report, Hyderabad has one of the highest petrol prices at ₹115.69 per litre, while diesel costs ₹103.82.

Thiruvananthapuram is also on the higher side, with petrol at ₹115.49 per litre and diesel at ₹104.40 per litre.

These comparisons apply only to the cities listed in the report and should not be interpreted as a nationwide ranking of the most expensive fuel markets.

Chandigarh Fuel Price Remains Lower

Chandigarh stands out in the supplied city list because petrol is priced below ₹100 per litre.

Petrol costs ₹98.10 per litre, while diesel is listed at ₹86.09 per litre.

Compared with Hyderabad, for example, the difference in petrol prices is more than ₹17 per litre.

This highlights the significant impact that local taxes and other pricing components can have on retail fuel rates.

What Determines Petrol and Diesel Prices?

Retail fuel prices are influenced by several components rather than one single factor.

International crude oil prices are particularly important because petrol and diesel are refined from crude oil. A sustained increase in global crude prices can raise the underlying cost of producing fuel.

The value of the Indian rupee against the US dollar also matters. India imports a substantial part of its crude oil requirement, and these transactions are generally dollar-denominated. A weaker rupee can therefore make imports more expensive.

Taxes Create Differences Between States

Taxes and duties are another major component of petrol and diesel prices.

Central and state-level levies contribute to the final amount consumers pay at the pump, and differences in taxation are one reason the same fuel can have different prices in Delhi, Jaipur, Mumbai, Hyderabad or other locations.

Refining costs also play a role because crude oil must be processed into usable products such as petrol and diesel. These costs can vary according to factors such as crude quality and refinery operations.

Demand and supply conditions may also influence the broader pricing environment.

Why Should You Check Fuel Prices Before Refuelling?

For someone buying only a few litres, a small price difference may not appear significant.

However, the impact becomes larger for people who drive long distances every day or businesses operating multiple commercial vehicles.

Fuel costs can also influence transportation expenses, which can indirectly affect the movement of food, vegetables and other goods.

Checking the current price before filling the tank can therefore help consumers plan their spending more effectively.

How to Check Petrol and Diesel Prices Through SMS

Consumers can also check fuel prices through SMS services offered by major oil marketing companies.

According to the supplied information, Indian Oil customers can send RSP along with their city code to 9224992249.

BPCL customers can send RSP to 9223112222, while HPCL customers can send HP Price to 9222201122.

Consumers should ensure that they follow the format required by their respective fuel company when using these services.

Fuel Rates Are Updated Every Morning

Oil marketing companies update petrol and diesel prices at around 6 AM every day, according to the supplied report.

This daily pricing mechanism means motorists should check the latest applicable rate rather than relying on an older price.

Rates can remain unchanged on many days, but checking before a large fuel purchase can still be useful.

Final Takeaway

Petrol and diesel prices for September 12, 2026 have been released, with significant differences continuing across major Indian cities.

Petrol costs ₹102.12 per litre in Delhi, ₹111.18 in Mumbai, ₹113.47 in Kolkata, ₹107.77 in Chennai and ₹112.66 in Jaipur. Hyderabad is listed at ₹115.69, while Chandigarh has a comparatively lower rate of ₹98.10 per litre.

Diesel stands at ₹95.20 in Delhi, ₹97.83 in Mumbai, ₹99.82 in Kolkata and ₹97.78 in Jaipur.

With fuel prices influenced by crude oil, currency movements, taxes, refining costs and other factors, motorists should check their city's latest rate before refuelling.