New Delhi, Feb. 2 -- Union finance minister Nirmala Sitharaman on Sunday proposed establishing dedicated rare earth corridors in Odisha, Kerala, Andhra Pradesh and Tamil Nadu to counter constrained global supply chains. The move was part of a suite of incentives, including customs duty exemptions aimed at strengthening India's critical minerals and clean energy infrastructure. The mineral-rich states will receive support to promote mining, processing, research and manufacturing of rare earths. Simultaneously, the government will exempt customs duties on capital goods required for processing critical minerals and various renewable and nuclear energy materials. "I propose to extend the basic customs duty exemption given to capital goods used ...