Let’s analyze the Assertion (A) and Reason (R) in detail:
Assertion (A): Indias victory over Pakistan in the 1971 War would not have been possible without Soviet assistance.
This is true. The Soviet Union provided critical support to India in the 1971 India-Pakistan War by signing the Indo-Soviet Treaty of Peace, Friendship, and Cooperation. This treaty ensured that the Soviet Union would back India in the event of any foreign interference, particularly from the United States or China. The Soviet Unions support played a key role in Indias strategic success in the war.
Reason (R): The Soviet Union deployed a fleet of nuclear-armed warships which successfully prevented the U.S. and the British warships from interfering in the war.
This is also true. The Soviet Union did indeed deploy warships, including nuclear-armed vessels, in the Bay of Bengal during the conflict. This show of military strength effectively deterred U.S. and British intervention in the war, particularly naval action, as they would have had to confront the Soviet fleet.
Conclusion:
Both the assertion and reason are true, and the reason directly explains why Indias victory was influenced by Soviet assistance. The Soviet Unions military presence, including the deployment of nuclear-armed warships, played a decisive role in preventing interference from other powers.
Thus, the correct answer is Option (1): Both (A) and (R) are true, and (R) is the correct explanation of (A).