The Hyderabad issue became a major unresolved problem in early 1947, no less worrying than Kashmir. In a passionate redistricting of the developing situation, he presents the causes, different perceptions and perspectives of the troubles and the nizam, as well as the dilemma of Muslims. In terms of popular politics, there was an overwhelming fact, he explains: « Hyderabad was predominantly Hindu, with Muslims making up about 20 per cent of the population. From a point of view, their political arrangements were manifestly undemocratic, with an autocratic Muslim leader at the head of the system and a small, apparently reactionary Muslim ruling class dominating his administration and political life. Soon, the goose was cooked for Nizam when the Indian army invaded India on September 17, 1948, in what was euphemistically called the police action or Operation Polo to merge Hyderabad into India. Major General J.N. Chaudhuri led the Indian army by invading the state on four fronts, the main thrust coming from Sholapur. Nizam`s army surrendered in 100 hours. Nizam seemed concerned about the lack of recognition of Hyderabad`s role. During a visit to the residence in June 1858 he had asked Davidson for assurances on the state of the relationship and whether « something had happened to interrupt the conveniences and alliances of the two governments. » The resident quickly assured him that everything was fine.
On 4 September, Hyderabad Prime Minister Mir Laiq Ali announced to the Hyderabad Assembly that a delegation led by Moin Nawaz Jung will visit Success Lake.  Nizam also unsuccessfully appealed to the British Labour government and the king to keep their commitments and promises in Hyderabad through « immediate intervention. » Hyderabad had only the support of Winston Churchill and the British Conservatives. In 1712, Emperor Farrukhsiyar appointed Qamar-ud-din Khan viceroy of Deccan and gave him the title of Nizam-ul-Mulk. He was later recalled to Delhi and Mubariz Khan was appointed viceroy. In 1724, Qamar-ud-din defeated Khan Mubariz Khan and recaptured the Deccan suba. It was founded as an autonomous province of the Mughal Empire. It took the name Asif Jah and began with the Asif Jahi dynasty. He called the Hyderabad area Deccan. The following rulers retained the title of Nizam ul-Mulk and were christened Asaf Jahi Nizams or Nizams of Hyderabad. The Medak and Warangal divisions of Telangana were part of their empire. Various important industries emerged in different parts of Hyderabad State before its accession to the Union of India, particularly in the first half of the 20th century. Hyderabad city had a separate power plant for electricity.
However, the Nizams have focused on industrial development in the Sanathnagar region and have hosted a number of industries with road and rail transport opportunities.  When Asaf Jah I. I. I died in 1748, there was political unrest due to quarrels over the throne among his sons, supported by opportunistic neighbouring states and colonial foreign forces. In 1769, the city of Hyderabad became the official capital of Nizam. Nasir-ud-dawlah, Asaf Jah IV signed the affiliate alliance with the British in 1799 and lost control of the state`s defence and foreign policy. Hyderabad State has become a princely state among the presidencies and provinces of British India. Altogether seven Nizam ruled Hyderabad. (There was a period of 13 years after the reign of Asaf Jah I, when three of his sons (Nasir Jung, Muzaffar Jung and Salabath Jung) ruled.