Published : 29 September 2026
Read Time : 5 min
Author: Nikil Jonathan
Tata have expanded their Battery-as-a-Service (BaaS) offering to their entire electric vehicle lineup in India. First introduced with the Tiago EV and Punch EV, the BaaS option is now available with the Nexon EV, Curvv EV, Sierra EV and Harrier EV

Under the BaaS model, customers pay separately for the vehicle and battery, lowering the upfront acquisition cost of the EV. The battery is financed through a separate loan account, with the battery financing cost linked to the battery size, down payment and loan tenure.
The BaaS prices in the table below are applicable to the base variant of each model. Tata have calculated the starting BaaS vehicle prices assuming a usage of 60km per day, except for the Tiago EV, where the assumption is 44km per day.
Under BaaS, the cost of the battery is separated from the vehicle's upfront acquisition price. Therefore, customers pay a lower initial amount for the vehicle, while the battery is financed independently.
The vehicle and battery are financed through separate loan accounts, with flexible loan tenures. The battery EMI varies depending on factors such as battery capacity, down payment and loan tenure. Tata EV have partnered with multiple financiers to give customers more options when accessing the BaaS financing model.
The battery financing or usage cost listed by Tata EV is charged on a per-kilometre basis. However, it does not include charging, maintenance, repairs or other associated ownership costs.
Tata say customers opting for BaaS will get the same product experience, technology and ownership support as customers who purchase the vehicle and battery together.
The BaaS model is essentially an additional financing route intended to reduce the initial acquisition cost of an EV. The battery EMI or usage-linked cost is separate from other ownership expenses.
The company has positioned BaaS as a way for customers to compare the upfront and ongoing costs of EV ownership through an additional financing structure.
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Content Writer
Nikil's a huge fan of classic cars, especially Italian beauties such as the Alfa Romeo Giulia Sprint and the Iso Grifo. His love for cars and bikes originated when he first laid his eyes on a poster of the Ferrari F40 and the MV Agusta F4 when he was just a child. He also loves all things analogue, especially vintage cameras and turntables.

























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