The first was Jawaharlal Nehru of the Indian National Congress party, who was sworn-in on 15 August 1947, when India gained independence from the British. Serving until his death in May 1964, Nehru remains India's longest-serving prime minister.
Jawaharlal Nehru
Who was the first female prime minister of the Republic of India, who served for three consecutive terms from 1966 to 1977 and then from 1980 until her assassination in 1984?