Electric Three-Wheelers Now Take Over 60% of Sales. Here Is What It Means for Used CNG Autos

For most of the last two decades, the auto-rickshaw at the stand outside a railway station ran on CNG, and in many cities on nothing else. That is no longer what the showroom sells. Electric three-wheelers took 61% of India's three-wheeler sales in FY2026, according to registration data analysed by Autocar Professional, and CNG fell to 24%. By August 2026, FADA's retail data put the electric share at 65.30%. CNG is now the minority fuel in new three-wheeler sales. That shift does not retire the lakhs of CNG and diesel autos already on the road. It does change who wants to sell them, who wants to buy them, and how careful both sides need to be about the papers.

The Numbers: How Far the Three-Wheeler Fuel Mix Has Moved

The full-year picture comes from registration data. In FY2026, electric three-wheelers recorded 8,30,819 retail sales, a record, and their share rose to 61% from 57% in FY2025. CNG three-wheelers fell to 3,27,958 units, down 4% from 3,40,588, and their share dropped from 28% to 24%. Electric gained almost exactly what CNG lost. Diesel, mostly goods carriers, actually grew 20% to 1,66,045 units and held about 12% of the market. Total three-wheeler sales across all fuels were about 13.6 lakh units.

The monthly retail data from the Federation of Automobile Dealers Associations (FADA) shows the shift continuing through 2026. FADA groups CNG and LPG together, so its figures are not directly comparable with the full-year CNG-only number, but the direction is the same.

August 2026 was also the segment's best-ever August, with 1,22,281 three-wheelers retailed, up 8.64% on a year earlier. FADA described the segment as structurally electric. FADA's September figures had not been published when this report went out; we will not guess at them.

Read the headline number carefully

The electric figure includes e-rickshaws, the low-speed vehicles that mostly work short feeder routes and do not compete directly with a CNG auto on a full city route. In FADA's June 2026 data, the two e-rickshaw categories (passenger and with cart) together accounted for about 39,400 of the 1.21 lakh three-wheelers retailed, close to a third. Among full-size autos, CNG still holds a bigger slice than the headline suggests. That matters for anyone deciding what a used CNG auto is worth: the market for it is shrinking, but it has not vanished.

Why More Used CNG Autos Are Likely to Come Up for Sale

When most new purchases go electric, the existing fleet turns over in one direction. An owner who buys an electric auto often sells the CNG one to fund the deposit, or because a second permit is not available to run both. Each of those switches puts a used CNG or diesel auto into the market.

Policy adds to it in some cities. Delhi's notified EV Policy 2026 allows only electric three-wheelers to be newly registered from 1 January 2027. Already registered vehicles can complete their normal life, so it is not a ban on existing CNG autos, a point we explained in detail in our report on Delhi's CNG auto sunset and used e-autos. Several cities also limit how many auto permits exist at all. Delhi's cap on auto permits, which dates back to a 1997 Supreme Court order and was raised to 1 lakh in 2011, was left in place by the Supreme Court in July 2024.

What does more supply do to price? It is reasonable to expect that used CNG auto prices may soften where many owners switch at once. We have not seen published data that measures it yet, so treat any seller or dealer who quotes a specific "market crash" figure with caution. Demand is real too: about 3.28 lakh new CNG three-wheelers were still registered in FY2026, and CNG remains cheaper upfront than electric for many drivers. A used CNG auto is a reasonable purchase for a driver who cannot afford an electric one yet. It is only a good one if the papers allow it to earn.

What This Means for Used Auto Buyers and Sellers

For buyers, a wider choice of used CNG passenger autos and goods three-wheelers, and possibly better prices, comes with a catch. Some of those vehicles are being sold precisely because something in the record has become difficult: a permit near the end of its term, a cylinder due for testing, a loan still running, a pile of challans. The vehicle's condition is the easy part to check. The records decide whether it can work.

For sellers, a crowded market rewards the vehicle with clean papers. When several similar CNG autos are on offer in the same area, the buyer who depends on the vehicle for daily income will pay for the one that can start earning without a week at the RTO. Getting the records in order before listing is not paperwork for its own sake. It is the main thing you can do to protect your price.

Buyer Checks: The Records That Decide If a Used CNG Auto Can Earn

1. The permit does not come with the keys

Under Section 82 of the Motor Vehicles Act 1988, a permit cannot be transferred from one person to another without the permission of the transport authority that granted it. Buying a vehicle covered by a permit does not, on its own, give the buyer any right to use that permit. In practice, the permit sits with the RTO or State Transport Authority, not inside the vehicle. Ask for the permit document, read the name, area and validity on it, and ask the issuing authority what a transfer needs and how long it takes. In a city where permits are capped, the permit can be worth more than the auto. Our auto and e-rickshaw permit check guide covers this step in more detail.

2. Fitness certificate validity

A transport three-wheeler needs a valid fitness certificate to ply. Under Rule 62 of the Central Motor Vehicles Rules 1989, renewal is for two years while the vehicle is up to eight years old and one year after that. Check the expiry date against today, not against the sale date. An expired certificate means the vehicle cannot legally carry a fare until it passes a fresh test.

3. CNG cylinder hydrotest and the fuel on the RC

The CNG cylinder must be hydrotested every three years at a testing centre approved by the Petroleum and Explosives Safety Organisation (PESO), under Rule 35(1) of the Gas Cylinders Rules. The next due date is stamped on the cylinder and shown on the test certificate. This is now being enforced at the pump: in September 2026, IGL started using cameras at 10 CNG stations in Delhi to read number plates, match them against hydrotest records and refuse fuel to vehicles without a valid certificate, with plans to extend it to all its stations. A CNG auto that cannot refuel cannot earn. Also confirm that the fuel shown on the registration record is CNG; a mismatch between the vehicle and the record is a question for the seller before you pay. Our guide to the CNG cylinder hydrotest explains how to read the stamping.

4. Hypothecation: is the loan really closed?

Three-wheelers are very often bought on loan, frequently from NBFCs. If a lender is still recorded against the vehicle, the RTO will not transfer ownership until the hypothecation is removed. That needs Form 35 and a no objection certificate (NOC) from the lender confirming the loan is fully repaid. "Only two EMIs left" is not a closed loan. Do not pay the balance until the NOC is in the seller's hand.

5. Pending challans stay with the number

An e-challan is raised against the registration number, not against the driver. A working auto that has had several drivers over the years can carry a long list. Unpaid challans can hold up RTO services on that number, including the transfer into your name. We set out why this hits auto buyers harder in our report on auto challans that follow the vehicle.

6. Insurance and registration age

Third-party insurance is compulsory for any vehicle on a public road, and a commercial auto without it should not move until it is renewed. Then check the registration date against any age limit your city or state applies to autos. These rules differ from place to place and change over time, so ask the local RTO rather than relying on what a seller or agent says. An older auto that is close to a local age limit is worth far less than its condition suggests.

Use this as a pre-payment checklist on any used CNG passenger auto or goods three-wheeler:

The first five rows come straight from the registration record. Vahan Verify pulls them from the VAHAN database using only the registration number: the RC check at Rs 99 shows registration status, owner number, blacklist flag, financer, fitness validity and insurance validity. The challan check is also Rs 99, and the Full Report with both is Rs 149. If you only want to know whether the vehicle is blacklisted, the Blacklist Check is Rs 99. The permit and the hydrotest are not in that record, so check those documents in person.

Seller Side: Switching to Electric Without Leaving Loose Ends

If you drive a CNG auto and plan to move to an electric one, the order you do things in matters. Many drivers book the new vehicle first and then try to sell the old one in a hurry. That is when papers get skipped and the price drops. A buyer who is putting savings or a loan into your auto will ask about every record on the list above. The quicker you can answer, the stronger your position.

1. Close the loan and get the NOC. Pay off the remaining balance, collect the lender's NOC and Form 35, and have the hypothecation removed from the record. A buyer cannot get the RC transferred while the lender is still recorded.
2. Clear your challans. Run a challan check on your own number. Settling pending challans before listing removes the most common reason a transfer gets stuck.
3. Keep fitness and the cylinder test current. An auto with valid fitness and a recent hydrotest certificate can start earning on the day it is handed over. That is what a working buyer pays for.
4. Ask your RTO or State Transport Authority about the permit. Because a permit cannot be transferred without the authority's permission, find out how your state handles it when you sell: transfer to the buyer, surrender, or another route. Some state EV schemes have their own conditions for new e-auto permits, so check before you assume your old permit carries over to the new vehicle.
5. Collect your documents in one folder. RC, permit, fitness certificate, insurance, PUC, hydrotest certificate, NOC and Form 35. Our used auto and e-rickshaw selling checklist lists each one.
6. Check your own record first. A Rs 99 RC check on your own auto shows exactly what a buyer will see: owner, financer, fitness and insurance validity. Fix anything stale before you advertise.
7. Complete the transfer on time. After the sale, the RC transfer must be reported within the time set by Section 50 of the Motor Vehicles Act 1988, which is 14 days for a sale within the same state. Until it is done, challans on the vehicle can still reach you.

One more point for drivers moving to electric. A used electric auto is a different purchase, with the battery as the biggest unknown. If you are considering a second-hand e-auto or e-cart instead of a new one, read our guide on checking a used electric three-wheeler before you commit.

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