Tata Motors has expanded its Battery-as-a-Service (BaaS) option across its entire electric car range, bringing lower upfront prices to models from the Tiago EV to the Harrier EV. The BaaS vehicle prices now start at ₹4.69 lakh, but that figure does not represent the complete cost of buying the EV. The battery is financed separately, creating a second payment alongside the vehicle loan.
The BaaS option was previously available on the Tiago EV and Punch EV. It has now been extended to the Nexon EV, Curvv EV, Sierra EV, and Harrier EV. Here is the complete Tata EV BaaS pricing lineup for 2026, how battery payments work, and what buyers should check before choosing a lower upfront price.
Tata EV BaaS Pricing 2026: Model-Wise List
The table below shows entry-variant prices for personal buyers. The battery figure is based on 60 km of daily running (44 km for the Tiago EV) and excludes charging.
| Tata EV | Battery | Regular price (battery included) | BaaS vehicle price | Upfront difference | Battery cost under BaaS |
| Tiago EV | 19.2 kWh | ₹6.99 lakh | ₹4.69 lakh | ₹2.30 lakh | ₹2.6/km |
| Punch EV | 30 kWh | ₹9.79 lakh | ₹6.59 lakh | ₹3.20 lakh | ₹2.6/km |
| Nexon EV | 45 kWh | ₹14.34 lakh | ₹8.99 lakh | ₹5.35 lakh | ₹4.4/km |
| Curvv EV | 55 kWh | ₹17.19 lakh | ₹10.99 lakh | ₹6.20 lakh | ₹5/km |
| Sierra EV | 63 kWh | ₹18.79 lakh | ₹11.99 lakh | ₹6.80 lakh | ₹5.5/km |
| Harrier EV | 65 kWh | ₹21.79 lakh | ₹14.49 lakh | ₹7.30 lakh | ₹5.9/km |
Prices are for entry variants and exclude road tax, insurance, TCS, and other statutory levies. Higher variants will cost more.
The BaaS figure is only the vehicle component. The upfront difference reflects how the purchase is financed. It is not a discount on the complete car.
Which Tata EVs Now Get BaaS?
The Tiago EV and Punch EV already offer BaaS. The Nexon EV, Curvv EV, Sierra EV, and Harrier EV are the new additions, so BaaS is now available across Tata’s full EV portfolio.
Buyers can still purchase any of these EVs the regular way, with the battery included in the price. BaaS is offered as an alternative financing option.
How Tata BaaS Works
In simple terms, the vehicle and battery are financed separately. Tata describes BaaS as a dual-loan finance product.
- At purchase: you pay the lower BaaS vehicle price, along with the down payment on the vehicle loan.
- Every month: you pay the vehicle EMI and a separate battery EMI.
- What the battery EMI depends on: battery size, down payment, and loan tenure. Tata has partnered with multiple financiers, so terms can vary.
Tata says there is no hidden battery down-payment cost. The BaaS price should still not be treated as the complete purchase or ownership cost.
How Much Lower Is the Upfront Price?
The upfront difference ranges from ₹2.30 lakh on the Tiago EV to ₹7.30 lakh on the Harrier EV.
The upfront price is lower because the battery, one of the costliest parts of an EV, is taken out of the vehicle price and financed on its own. The cost has been moved into a separate payment, not removed. That is why the upfront difference and the monthly battery payment need to be read together.
What Does the Battery Cost Mean Per Kilometre?
The quoted ₹/km figure should not be treated as a charge that changes every time you drive the car. It represents the battery payment calculated against an assumed level of monthly usage. The actual monthly amount can depend on the financing terms.
Tata’s own example shows how this works. An earlier report on the Tiago EV and Punch EV said the battery could be financed for up to 8 years. At about 1,800 km of running a month (60 km a day), Tata put the monthly cost at ₹4,688, which works out to roughly ₹2.6 per km. That tenure was reported for those two models. It is not confirmed for the newly added ones.
Tata’s illustration assumes 60 km a day for most models and 44 km a day for the Tiago EV. Your own driving may differ, so ask the dealer or financier for the actual monthly figure.
The battery payment also excludes charging, maintenance, repairs, and other running costs.
BaaS vs Buying the EV With the Battery Included
| Battery included | BaaS | |
| Upfront vehicle price | Higher | Lower |
| Battery payment | Part of the vehicle price | Separate monthly battery EMI |
| Financing | Single vehicle loan, if financed | Vehicle and battery financed separately |
| Monthly outgo | Vehicle EMI only | Vehicle EMI plus battery EMI |
Neither structure is better for everyone. BaaS lowers the entry cost and adds a recurring battery payment. Buying the battery-included EV costs more upfront and has no separate battery instalment.
What Buyers Should Check Before Choosing BaaS
- Battery payment structure: ask what the quoted ₹/km figure assumes and what the actual monthly EMI will be.
- Tenure and financier: Tata says tenures are flexible and several financiers are involved, so terms may differ.
- Down payment: get the total down payment across both the vehicle and the battery, not just the vehicle.
- Usage conditions: minimum or maximum usage limits were not confirmed in the reports we reviewed.
- Eligibility: the offer applies to personal users only.
- Charging costs: the battery payment does not cover electricity.
- Warranty: check the battery warranty for the specific EV and battery variant, and confirm whether the BaaS arrangement changes any warranty terms.
- Resale and transfer: how the battery loan is handled if you sell the car early has not been confirmed. Ask before signing.
- Total ownership cost: add up both payments, interest, down payments, charging, and insurance. Compare that with the regular purchase over the period you expect to keep the car.
What This Means for Tata EV Buyers
The change is most visible on the larger, higher-priced models. The Harrier EV’s BaaS vehicle price is ₹14.49 lakh, compared with ₹21.79 lakh for the battery-included entry version. For buyers who prefer a smaller down payment and can handle two monthly obligations, the lower entry price may be useful.
Buyers who plan to keep the car for many years, or who compare on total cost, should work out the full payment structure. Two prices are now on the table, and the lower one covers only part of the purchase.
Final Verdict
What has changed is how a Tata EV can be financed. BaaS is now available across the full range, and the lower upfront prices are real as a starting figure. They also move part of the cost into a separate monthly battery payment. The per-km numbers rest on Tata’s own usage assumptions. Buyers should get written quotes for both routes and compare them against their own driving pattern.
FAQs
What is Tata EV BaaS?
It is a financing option in which the vehicle and the battery are financed separately. The vehicle price is lower, and the battery is paid for through a separate monthly instalment.
Which Tata EVs are available with BaaS?
The Tiago EV, Punch EV, Nexon EV, Curvv EV, Sierra EV, and Harrier EV.
What is the starting price of Tata EVs with BaaS?
The lowest BaaS vehicle price is ₹4.69 lakh for the Tiago EV. This excludes the battery payment and taxes.
Is the battery included in the BaaS price?
No. The battery is financed and paid for separately.
Is BaaS cheaper than buying the EV normally?
The upfront price is lower. Whether the overall cost is lower depends on the battery EMI, interest, how long you keep the car and how you use it, so the two routes should be compared using actual quotes.
