The Union Cabinet has approved Semicon 2.0, the second phase of the India Semiconductor Mission (ISM 2.0), with a total outlay of ₹1,27,500 crore to build India's semiconductor design and manufacturing ecosystem on six pillars. Media reports indicate the Centre will not subsidise land acquisition or technology transfer costs under the new scheme, with states expected to take the lead on land, and capital subsidies for silicon fabs reduced from 50% to 40%. This article explains what semiconductors are, the achievements of ISM 1.0, the six pillars of Semicon 2.0, the revised incentive structure, the role of states, India's chip targets for 2029 and 2035, and the challenges ahead — all from the UPSC Prelims and Mains perspective.