Tata EVs Now From Rs 4.69 Lakh With Battery Rental: Is BaaS Worth It?

On 28 September 2026 Tata Motors extended its Battery as a Service (BaaS) scheme from the Tiago.ev and Punch.ev to its entire electric range. You can now drive home a Nexon.ev, Curvv.ev, Sierra.ev or Harrier.ev without paying for the battery upfront. The sticker prices look dramatic, but BaaS is a payment plan, not a discount. Here is how it works and when it actually saves you money.

What is Battery as a Service (BaaS)?

An EV battery pack is the single costliest part of the car. Under BaaS, the battery cost is taken out of the vehicle's price. You pay a lower amount for the car and pay for the battery separately over time.

Tata's version uses a dual loan structure: the vehicle and the battery are financed through separate loan accounts with independent tenures, through several partner financiers. Tata has not named them publicly. According to Autocar India, the battery EMI depends on battery size, down payment and loan tenure, and it does not cover charging, maintenance or repairs.

Tata also quotes a per km equivalent for each model. This is not a meter running on every kilometre. It is the battery payment expressed per km, assuming 60 km of driving a day (44 km a day for the Tiago.ev). Tata CCO Vivek Srivatsa said the aim is to let buyers make "a fair and transparent comparison" with rival BaaS offers.

Tata EV BaaS prices vs regular prices: full list

Note: the Nexon.ev range itself starts lower, at Rs 12.49 lakh ex-showroom, with a smaller 30 kWh pack. The Rs 14.34 lakh figure above is the like for like 45 kWh price Autocar India used for the BaaS comparison. BaaS prices apply to entry trims and are introductory.

Tata BaaS vs MG BaaS: how do the rates compare?

MG popularised BaaS in India with the Windsor. The key difference is how the charge is framed. MG's BaaS bills a battery rental per km driven, while Tata's figure is a loan EMI converted into a per km number at an assumed daily distance.

The MG Comet EV BaaS launched at Rs 4.99 lakh plus Rs 2.5/km, though later listings put its rate higher, so check with a dealer. Hyundai, Kia, Citroen, Mahindra and Toyota also offer BaaS on select EVs, each with its own terms.

Is BaaS cheaper than buying? Nexon.ev worked example

The basic formula for any BaaS plan is simple:

Step 1, Tata's own assumption. Tata's Rs 4.4/km for the Nexon.ev is based on 60 km a day, about 1,800 km a month. That implies a battery payment of roughly 4.4 x 1,800 = Rs 7,920 a month. This is our illustration from Tata's stated assumption; your real EMI depends on down payment and tenure.

Step 2, if you drive less. Because Tata's charge is an EMI, it does not shrink when you drive less. Your effective cost per km rises instead:

• 1,000 km a month: Rs 7,920 / 1,000 = about Rs 7.92 per km.
• 1,500 km a month: Rs 7,920 / 1,500 = about Rs 5.28 per km.
• 1,800 km a month: Rs 4.4 per km, as advertised.

Step 3, a metered plan for contrast. Using MG Windsor's published Rs 3.99/km purely as an illustration of a per km rental: 1,000 km costs Rs 3,990 a month and 1,500 km costs Rs 5,985 a month. A metered plan suits low mileage drivers better; an EMI plan suits high mileage ones.

Step 4, the five year view. Paying Rs 7,920 a month for 60 months adds up to about Rs 4.75 lakh, against Rs 5.35 lakh more upfront to buy the Nexon.ev outright. That looks close, but Tata has not published the battery loan's interest rate, tenure options or end of term terms, so treat this as a rough guide, not a quote. Ask the dealer for the full battery loan schedule before signing.

BaaS pros and cons

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Who should choose BaaS?

• High mileage drivers covering 1,800 km a month or more, such as daily long commuters, get the best value from Tata's EMI style plan.
• Buyers with a tight upfront budget who would otherwise stretch for a petrol car.
• Not ideal for weekend drivers doing under 1,000 km a month, or for anyone who can pay cash and wants the simplest ownership.

Smart extras for a new EV owner

Every rupee saved upfront can go into making the car nicer to live with. A wireless CarPlay video box lets you use maps with charger locations without cables, while a 2K dash camera records every drive for insurance claims.

For upkeep, a cordless car vacuum handles cabin dust, a 1200 GSM microfiber towel dries the paint without swirl marks, and a wax infused car duster clears daily dust. EV cabins are silent, so a subtle dashboard perfume finishes it off. We post quick EV care reels on Autofy's Instagram.

Key takeaways

• Tata extended BaaS to all six of its EVs on 28 September 2026.
• BaaS prices start at Rs 4.69 lakh (Tiago.ev) and go up to Rs 14.49 lakh (Harrier.ev), ex-showroom, introductory.
• The battery is paid through a separate loan; Tata's Rs 2.6 to Rs 5.9 per km figures assume 60 km a day (44 km for Tiago.ev).
• MG charges a true per km rental: Rs 3.99/km to Rs 4.90/km depending on model.
• BaaS lowers the upfront cost but is not automatically cheaper over time, especially at low mileage.

Frequently asked questions