Telangana
When India became independent from the British Empire in 1947, the Nizam of Hyderabad did not want to merge with the Indian Union and wanted to remain independent. The Government of India annexed Hyderabad State on 17 September 1948 after a military operation called Operation Polo. It appointed a civil servant, M. K. Vellodi, as first chief minister of Hyderabad State on 26 January 1950. He administered the state with the help of English-educated bureaucrats from the Madras and Bombay states, who were familiar with British systems of administration unlike the bureaucrats of Hyderabad State who used a completely different administrative system. The official language of the state was switched from Urdu to English.
Independence Day (India)
At the 1929 Lahore session of the Indian National Congress, the "Purna Swaraj" declaration, or "Declaration of the Independence of India" was promulgated, and 15 August was declared as Independence Day. The Congress called on people to pledge themselves to civil disobedience and "to carry out the Congress instructions issued from time to time" until India attained complete independence. Celebration of such an Independence Day was envisioned to stoke nationalistic fervour among Indian citizens, and to force the British government to consider granting independence.
The Congress observed 26 January as the Independence Day between 1930 and 1946. The celebration was marked by meetings where the attendants took the "pledge of independence". Jawaharlal Nehru described in his autobiography that such meetings were peaceful, solemn, and "without any speeches or exhortation". Gandhi envisaged that besides the meetings, the day would be spent "... in doing some constructive work, whether it is spinning, or service of 'untouchables,' or reunion of Hindus and Mussalmans, or prohibition work, or even all these together". Following actual independence in 1947, the Constitution of India came into effect on and from 26 January 1950; since then 26 January is celebrated as Republic Day.