Correct Option
The correct option is 2 and 3 only.
Explanation
India's mineral resources are unevenly distributed across distinct geological belts. The Peninsular region contains the majority of metallic minerals and coal, while the sedimentary basins and coastal regions are significant for non-metallic minerals and petroleum reserves.
Statement-wise Analysis
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Statement 1 is Incorrect.
Rajasthan is extremely rich in non-metallic minerals and is often referred to as a "museum of minerals." It possesses significant reserves of limestone, gypsum, marble, granite, sandstone, feldspar, and rock phosphate. It is a leading producer of cement-grade limestone and various building stones.
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Statement 2 is Correct.
The coastal sands of Kerala contain rich deposits of monazite, a phosphate mineral that is a major source of thorium. These placer deposits are strategic atomic mineral reserves found along the Malabar Coast.
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Statement 3 is Correct.
The North-Eastern region of India, particularly Assam and Meghalaya, is characterized by Tertiary rock systems. These geological formations contain significant deposits of Tertiary coal (which is younger and has higher moisture content than Gondwana coal) and petroleum reserves (e.g., Digboi and Naharkatiya fields in Assam).
Key Takeaway
Key Takeaway: While the Peninsular plateau is the storehouse of metallic minerals, Rajasthan is dominant in non-metallic minerals (building stones, gypsum). Energy resources like thorium are found in coastal placer deposits (Kerala), while petroleum and tertiary coal are concentrated in the sedimentary rocks of North-East India.