Read the passage carefully and answer the following question:

The ease with which the succession after Nehru took place proved all the critics wrong. When Nehru passed away, K. Kamraj, the president of the Congress party consulted party leaders and Congress members of Parliament and found that there was a consensus in favour of Lal Bahadur Shastri. He was unanimously chosen as the leader of the Congress parliamentary party and thus became the country's next Prime Minister. Shastri was a non-controversial leader from Uttar Pradesh who had been a Minister in Nehur's cabinet for many years. Nehru had come to depend a lot on him in his last year. He was known for his simplicity and his commitment to principles. Earlier he had resigned from the position of Railway Minister accepting moral responsibility for a major railway accident. Shastri was the country's Prime Minister from 1964 to 1966. During Shastri's brief Prime Ministership, the country faced two major challenges. While India was still recovering from the economic implications of the war with China, failed monsoons, drought and serious food crisis presented a grave challenge. The country also faced a war with Pakistan in 1965. Shastri's famous slogan 'Jai Jawan Jai Kisan', symbolised the country's resolve to face both these challenges. Shastri's Prime Ministership came to an abrupt end on 10 January 1966, when he suddenly expired in Tashkent, then in the USSR and currently the capital of Uzbekistan. He was there to discuss and sign an agreement with Muhammad Ayub Khan, the then President of Pakistan, to end the war.

During the Prime Ministership of Lal Bahadur Shastri India faced a war with _____.

Pakistan

The correct answer is option (1) - Pakistan

As per the passage:

During Shastri's brief Prime Ministership, the country faced two major challenges. While India was still recovering from the economic implications of the war with China, failed monsoons, drought and serious food crisis presented a grave challenge. The country also faced a war with Pakistan in 1965. Shastri's famous slogan 'Jai Jawan Jai Kisan', symbolised the country's resolve to face both these challenges.