Explanation

Statement 1 — Correct: Su-30 MKI fighter jets are manufactured in India by Hindustan Aeronautics Limited (HAL) at Nashik under a licensing and technology-transfer arrangement with Russia’s Sukhoi. Recent contracts also involve substantial indigenous content.

Statement 2 — Correct: T-90 MK-III (Bhishma) tanks are manufactured in India by Armoured Vehicles Nigam Limited (AVNL) at the Heavy Vehicles Factory in Avadi, Tamil Nadu, under Russian licence.

Statement 3 — Incorrect: Akula-class submarines are designed and built in Russia, not India. India has operated such submarines through leasing arrangements with Russia, including INS Chakra, primarily for training and operational experience.

Therefore, Statements 1 and 2 are correct.