Explanation:

Correct Answer is B.

Explanation:

Mir Osman Ali Khan was the ruler of Hyderabad state when India attained independence. He was seventh Nizam and ruled Hyderabad state from 1911 to 1948.Hyderabad, as the largest state in India and was completely surrounded by Indian territory. The Nizam of Hyderabad claimed an independent status and, encouraged by Pakistan, began to
expand his armed forces.as the Nizam made a secret commitment to join Pakistan, Patel made it clear that India would
not tolerate ‘an isolated spot which would destroy the very Union which we have built up with our blood and toil’.
In November 1947, the Government of India signed a stand– still agreement with the Nizam, to introduce representative government in the state. But the Nizam had other plans. He hoped to prolong negotiations and in the meanwhile build up his military strength and force India to accept his sovereignty; or alternatively he might succeed in acceding to Pakistan, especially in view of the tension between India and Pakistan over Kashmir.By June 1948, Sardar Patel was getting impatient as the negotiations with the Nizam dragged on.the Nizam continued to import more and more arms, the Indian army moved into Hyderabad.The Nizam surrendered.The Government of India decided to be generous and not punish the Nizam. He was retained as formal ruler of the state or its Rajpramukh, was given a privy purse of Rs 5 million, and permitted to keep most of his immense wealth.With the accession of Hyderabad, the merger of princely states with the Indian Union was completed. The Hyderabad episode marked another triumph of Indian secularism. Not only had a large number of Muslims in Hyderabad joined the anti-Nizam struggle, Muslims in the rest of the country had also supported the government’s policy and action.