India, Feb. 1 -- Finance Minister Nirmala Sitharaman on Sunday announced an extension of the basic customs duty exemption on capital goods used for manufacturing lithium-ion cells for battery storage, aiming to strengthen domestic production and support India's clean energy transition.

In her Union Budget 2026–27 speech, she also proposed to exclude the entire value of biogas while calculating excise duty on blended CNG, making green fuel blends more cost-effective.

Additionally, the minister proposed to exempt basic customs duty on the import of sodium antimonate, a key input used in the manufacturing of solar glass, to encourage growth in the renewable energy ecosystem.

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