The correct answer is (a). Only statements 1, 2, and 3 are correct.
Statement 1: India’s first EPZ was set up in Kandla, Gujarat in 1965.
Statement 2: Special Economic Zone (SEZ) policy in India was formulated in 2000.
Statement 3: Vadodara is famous for Patola Silk.
Statement 4: Panna in Madhya Pradesh is famous gold mines.
Statement 3 is incorrect because Vadodara is famous for its diamonds, not Patola Silk. Patola Silk is a type of silk that is produced in Gujarat and Rajasthan.