Indigenous Defense Hardware Manufacturing

Statements 1 and 2 are correct. The Su-30 MKI air superiority fighter (1) has been license-manufactured in large volumes domestically by Hindustan Aeronautics Limited (HAL). The T-90 MK-III main battle tank variants (2) are assembled and produced locally at the Heavy Vehicles Factory (HVF) in Avadi, Chennai. Statement 3 is incorrect because Akula-class nuclear-powered attack submarines are operated on strategic long-term lease frameworks from Russia rather than being manufactured in India.