Explanation:

Correct option 2: Rajasthan

?In January 2021, the Rajasthan state government launched the Manufactured Sand (M-Sand) Policy 2020. This policy aims to reduce dependency on river sand by promoting the use of M-sand, produced by crushing locally available minerals like granite and basalt. It designates M-sand units as industries, provides incentives under the Rajasthan Industrial Promotion Scheme (RIPS) 2019, and mandates that at least 25% of sand used in government construction projects be M-sand. The initiative seeks to address environmental concerns, create local employment opportunities, and meet the state's annual demand of approximately 70 million tonnes of sand.