Concept:This question checks your understanding of India's fertilizer sector, including domestic production, types of fertilizers, and historical trends after the Green Revolution.
Explanation:Statement 1 is incorrect. India does not fully meet its potash demand domestically; it relies heavily on imports from countries like Canada and Russia because domestic potash reserves are negligible.
Statement 2 is correct. Urea is the most produced and consumed nitrogen fertilizer in India. It is a key input for agriculture and is heavily subsidized by the government.
Statement 3 is correct. Fertilizer output grew significantly after the Green Revolution (1960s) because high-yielding crop varieties required more fertilizers to boost productivity.
Statement 4 is incorrect. Gujarat is a major hub for fertilizer production (e.g., IFFCO, GSFC), not a modest contributor. Kerala's contribution is relatively smaller, but the statement groups them together and is therefore false.
So only statements 2 and 3 are correct.
Answer:B. 2 and 3 only