Petrol Diesel Price Update, October 21, 2026: Fuel prices remain an important concern for millions of Indian households, particularly those who depend on cars, motorcycles and commercial vehicles for daily transportation. Even a small change in petrol or diesel rates can affect commuting expenses, business operating costs and household budgets.

As motorists prepare for their daily journeys, checking the latest fuel prices can help them estimate transportation expenses more accurately. Petrol and diesel prices vary across Indian cities because of differences in state taxes, transportation costs and other pricing factors.

According to the fuel rate figures published in the October 21 report, petrol prices range from ₹98.10 per litre in Chandigarh to ₹115.69 per litre in Hyderabad among the listed cities. Diesel prices range from ₹86.09 in Chandigarh to ₹104.40 in Thiruvananthapuram.

However, the source identifies these figures as rates for October 20, 2026. They should therefore be treated as reference prices rather than independently verified rates for October 21.

Petrol and Diesel Rates Across Major Indian Cities

Here is a detailed comparison of the petrol and diesel prices provided in the report.

Note: These are the October 20, 2026 reference rates supplied in the source article, not independently confirmed October 21 prices. Actual pump rates may differ.

Petrol Prices in Delhi, Mumbai, Kolkata and Chennai

Fuel rates in India's four major metropolitan cities show noticeable differences.

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

Mumbai motorists face a higher petrol rate of ₹111.18 per litre, with diesel priced at ₹97.83.

In Kolkata, petrol is reported at ₹113.47 per litre, while diesel is available at ₹99.82 per litre.

Chennai's reference rates stand at ₹107.77 for petrol and ₹99.55 for diesel.

Among these four cities, Kolkata has the highest listed petrol price, while New Delhi has the lowest.

These variations demonstrate why consumers should check fuel prices for their specific location rather than relying on a single nationwide figure.

Fuel Prices in Jaipur, Lucknow, Noida and Patna

Motorists in northern and eastern India also face varying fuel expenses.

In Jaipur, petrol is listed at ₹112.66 per litre, while diesel costs ₹97.78 per litre.

Lucknow's petrol price stands at ₹102.05 per litre, with diesel at ₹95.55.

In Noida, petrol is reported at ₹102.12 per litre and diesel at ₹95.56.

Patna has comparatively higher petrol prices, with the listed rate reaching ₹113.35 per litre. Diesel in the Bihar capital is priced at ₹99.36.

For regular commuters, these differences can translate into noticeable changes in monthly fuel expenditure.

A motorist purchasing 40 litres of petrol would spend ₹4,082 at Lucknow's listed rate, compared with ₹4,506.40 in Jaipur.

That represents a difference of ₹424.40 for the same quantity of fuel.

Which Cities Have the Highest Petrol and Diesel Prices?

Among the 14 cities included in the report, Hyderabad has the highest listed petrol price at ₹115.69 per litre.

Thiruvananthapuram follows closely at ₹115.49 per litre, while Kolkata and Patna also have petrol rates above ₹113.

For diesel, Thiruvananthapuram has the highest reported price at ₹104.40 per litre.

Hyderabad follows at ₹103.82 per litre, while Bhubaneswar's diesel price is listed at ₹100.92.

Chandigarh records the lowest prices for both fuels among the cities included in the comparison, with petrol at ₹98.10 and diesel at ₹86.09 per litre.

These figures illustrate how location can significantly influence the cost of operating a vehicle.

Why Do Petrol and Diesel Prices Differ Between Cities?

Petrol and diesel prices are influenced by several economic and taxation-related factors.

One important consideration is the international price of crude oil, which affects the cost of producing petroleum products.

Currency exchange rates also matter because crude oil imports are generally priced in US dollars.

If the Indian rupee weakens against the dollar, imported crude can become more expensive in rupee terms, although the effect on retail fuel prices is not necessarily immediate.

Central excise duties, state-level value-added taxes and dealer commissions also contribute to the final amount paid by consumers.

State taxes are particularly important in explaining why neighbouring cities can have different petrol and diesel prices.

Transportation and distribution expenses may create additional variations.

At What Time Are Petrol and Diesel Prices Updated?

Public-sector oil marketing companies generally publish daily petrol and diesel price updates at approximately 6 AM.

The major companies involved include Indian Oil Corporation Limited, Bharat Petroleum Corporation Limited and Hindustan Petroleum Corporation Limited.

However, daily price publication does not necessarily mean that fuel rates change every morning.

Prices can remain unchanged for extended periods, depending on pricing decisions and prevailing market conditions.

Consumers should therefore distinguish between a newly published daily rate and an actual increase or decrease in price.

How to Check the Latest Petrol and Diesel Prices

Before visiting a fuel station, motorists can check the latest rates through official oil marketing company platforms.

Indian Oil customers can visit Indian Oil Corporation, while Bharat Petroleum customers can access BPCL's official website.

Hindustan Petroleum also provides information through its official website at hindustanpetroleum.com.

Customers may also use authorised fuel price information services or check the displayed rates at their nearest petrol pump.

Verifying the current rate is especially useful when travelling between cities or states where fuel taxes and retail prices differ.

How Fuel Prices Affect Household Budgets

Petrol and diesel are essential to India's transportation system.

Petrol is widely used in private cars and two-wheelers, while diesel plays an important role in commercial transportation, agriculture and logistics.

Changes in fuel prices can therefore affect more than the cost of personal travel.

Higher diesel expenses may increase operating costs for transport companies and businesses that depend on road freight.

Similarly, rising petrol prices can put pressure on households that rely on private vehicles for commuting.

For example, a person purchasing 50 litres of petrol each month would spend ₹5,633 at Jaipur's listed price of ₹112.66 per litre.

A change of ₹2 per litre would increase or decrease that monthly expense by ₹100, assuming consumption remains constant.

Although such differences may appear modest individually, they can become significant over time.

Have Petrol and Diesel Become Cheaper or More Expensive on October 21?

The available source does not provide a verified comparison between October 20 and October 21 prices.

As a result, it is not possible to confirm from the supplied information whether petrol or diesel became cheaper, more expensive or remained unchanged on October 21.

Motorists should consult official oil marketing company updates for an accurate daily comparison.

The listed prices remain useful as reference figures for understanding regional differences, but they should not be presented as confirmed changes for the following day.

Final Word

Petrol and diesel prices continue to influence the daily expenses of motorists, transport operators and businesses across India.

The supplied October 20 reference figures show substantial differences between cities, with petrol listed at ₹102.12 in Delhi, ₹111.18 in Mumbai, ₹112.66 in Jaipur and ₹115.69 in Hyderabad.

Diesel prices also vary, ranging from ₹86.09 in Chandigarh to ₹104.40 in Thiruvananthapuram among the locations covered.

Consumers planning to refuel on October 21, 2026, should verify the latest applicable rates through their fuel provider before making purchasing decisions.

Regularly monitoring fuel prices can help households and businesses manage transportation expenses and plan their budgets more effectively.