Tenth Amendment of the Constitution of India of Goa, Daman and Diu in 1961, and KG Badlani, an officer of the Indian Administrative Service (IAS) was designated Prime Minister of Dadra and Nagar Haveli for one day, so that, as head of state, he could sign an agreement with Prime Minister Jawaharlal Nehru to merge Dadra and Nagar Haveli formally with the Republic of India. On 31 December 1974, a treaty was signed between India and Portugal recognising India's sovereignty over Goa, Daman, Diu, Dadra and Nagar Haveli. The Portuguese occupied Nagar Haveli on 10 June 1783 on the basis of Friendship Treaty executed on 17 December
Principal Secretary to the Prime Minister of India a retired 1972 batch Gujarat cadre Indian Administrative Service (IAS) officer, was appointed by the Appointments Committee of the Cabinet to serve as newly-elected Prime Minister Narendra Modi's additional principal secretary. The status of an additional principal secretary—akin to the principal secretary—is generally considered equivalent to the Cabinet Secretary, the Government of India's topmost civil servant. Principal Secretary to the Prime Minister of India The Principal Secretary to the Prime Minister of India (PS to the PM; IAST: ) is the senior-most bureaucrat in, and the administrative head of, the Prime Minister's Office. The officeholder is generally a civil servant,