Tata.ev Extends Battery-as-a-Service (BaaS) to Its Entire EV Portfolio: Prices, Per-km Costs and How It Works

Tata.ev has made Battery-as-a-Service (BaaS) available on every electric car it sells. The Mumbai announcement of September 28, 2026 adds the Nexon.ev, Curvv.ev, Sierra.ev and Harrier.ev to the Tiago.ev and Punch.ev, which already had the option. The starting BaaS vehicle price now ranges from ₹4.69 lakh (Tiago.ev) to ₹14.49 lakh (Harrier.ev).

Key Takeaways: Tata.ev BaaS at a Glance

• BaaS is now available across Tata.ev’s entire EV portfolio: Tiago.ev, Punch.ev, Nexon.ev, Curvv.ev, Sierra.ev and Harrier.ev.
• BaaS separates the battery cost from the vehicle’s upfront price and finances it independently.
• The vehicle and the battery are financed through separate loan accounts, with flexible tenures.
• Starting BaaS prices run from ₹4.69 lakh to ₹14.49 lakh, with battery financing/usage costs from ₹2.6/km to ₹5.9/km.
• Buying the EV outright, including the battery, remains available.
• Tata.ev says it has partnered with multiple financiers for BaaS.

What Is Battery-as-a-Service (BaaS) and How Does It Work on Tata.ev EVs?

Under Tata.ev’s BaaS, the cost of the battery is separated from the upfront vehicle acquisition price and financed on its own. This lowers the initial cost of acquiring an EV.

The two parts are handled as follows:

• Vehicle: financed through one loan account.
• Battery: financed through a separate loan account.
• Tenure: flexible for both.
• Battery EMI: varies with battery size, down payment and tenure.

The footnote in the release calls BaaS a dual-loan finance product, subject to terms and conditions and approval of financiers. Tata.ev says the battery EMI excludes charging, maintenance, repairs and other associated costs.

Which Tata.ev Cars Now Get BaaS? Nexon.ev, Curvv.ev, Sierra.ev and Harrier.ev Join Tiago.ev and Punch.ev

Tata.ev first introduced BaaS on its entry-level EVs, the Tiago.ev and Punch.ev. The latest announcement extends it to the Nexon.ev, Curvv.ev, Sierra.ev and Harrier.ev, so the option now covers the whole lineup.

Tata.ev BaaS Price List: Starting Prices, Battery Sizes and Per-km Costs (September 2026)

Model	Battery (kWh)	Starting regular price	Starting BaaS vehicle price	Battery financing / usage cost
Tiago.ev	19	₹6.99 lakh	₹4.69 lakh	₹2.6 / km
Punch.ev	30	₹9.79 lakh	₹6.59 lakh	₹2.6 / km
Nexon.ev	45	₹14.34 lakh	₹8.99 lakh	₹4.4 / km
Curvv.ev	55	₹17.19 lakh	₹10.99 lakh	₹5 / km
Sierra.ev	63	₹18.79 lakh	₹11.99 lakh	₹5.5 / km
Harrier.ev	65	₹21.79 lakh	₹14.49 lakh	₹5.9 / km

Source: Tata.ev press release. BaaS is a dual-loan finance product, T&C apply, subject to approval of financiers. Prices apply to entry trims of each model and assume usage of 60 km per day (44 km per day for the Tiago.ev), excluding charging cost. They are for personal users only and exclude government statutory levies such as road tax, insurance and TCS.

How Much Lower Is the Upfront Price With BaaS? Model-by-Model Difference

Subtracting the starting BaaS vehicle price from the starting regular price, using the release’s own figures, gives the upfront difference:

Model	Upfront difference (approx.)
Tiago.ev	₹2.30 lakh
Punch.ev	₹3.20 lakh
Nexon.ev	₹5.35 lakh
Curvv.ev	₹6.20 lakh
Sierra.ev	₹6.80 lakh
Harrier.ev	₹7.30 lakh

These differences are BijliWaliGaadi.com’s own arithmetic on the press release figures, not numbers Tata.ev published. The lower upfront price is only part of the picture, since the battery is then financed separately at the per-km cost shown above.

BaaS vs Buying Outright: Tata.ev Says Customers Keep Both Options

Tata.ev is not replacing outright purchase with BaaS. Chief Commercial Officer Vivek Srivatsa said customers can continue to buy their EV outright, including the battery, or choose BaaS to lower the upfront acquisition cost.

He said customers today want more choice, both in which EV they buy and in how they finance it. He also said that as BaaS becomes more visible in the EV market, Tata.ev wants buyers to be able to make a “fair and transparent comparison.” In his words, the aim is to “give customers the freedom to choose the solution that works best for them.”

Will the Ownership Experience Change With BaaS?

According to Tata.ev, no. Customers who choose BaaS get the same product experience, technology and ownership support as other buyers. The company describes BaaS as an additional, convenient financing route to access the vehicle.

Who Is Eligible for Tata.ev BaaS, and What Do the Fine Print Conditions Say?

Buyers should note these conditions from the release:

• Personal users only: the quoted prices apply to personal users.
• Entry trims: the starting BaaS prices apply to the entry trims of each model.
• Assumed usage: 60 km per day (44 km per day for the Tiago.ev), excluding charging cost.
• Approval: the product is subject to approval by financiers, and terms and conditions apply.
• Not included: road tax, insurance, TCS and other government levies are excluded from the prices shown.

Our Take: What This Means for EV Buyers in India

Extending BaaS from the two smallest cars to the whole range is the notable part of this announcement. The starting BaaS prices bring the Nexon.ev, Curvv.ev, Sierra.ev and Harrier.ev to ₹8.99 lakh, ₹10.99 lakh, ₹11.99 lakh and ₹14.49 lakh. The trade-off is a per-km battery cost, which rises with battery size, from ₹2.6/km to ₹5.9/km.

Before choosing, buyers should:

• Estimate their real daily running against the 60 km assumption used for these prices.
• Ask lenders about tenures, down payment and battery EMI for their specific trim.
• Compare the total cost of the two-loan route with the outright purchase.

About the Announcement

The release was issued from Mumbai on September 28, 2026, by Tata Motors Passenger Vehicles Ltd. (formerly Tata Motors Ltd), which describes TATA.ev as India’s #1 EV 4-wheeler OEM. Media contact: Corporate Communications, +91 22-66657613, pvcomms@tatamotors.com. More information is at https://tata.cars.

Frequently Asked Questions About Tata.ev Battery-as-a-Service

---