Prime Minister of India
The Prime Minister of India is the leader of the executive of the Government of India. The prime minister is also the chief adviser to the President of India and head of the Council of Ministers. They can be a member of any of the two houses of the Parliament of India—the Lok Sabha (House of the People) and the Rajya Sabha (Council of the States)—but has to be a member of the political party or coalition, having a majority in the Lok Sabha.
Indira Gandhi
Indira Priyadarshini Gandhi (; née Nehru; 19 November 1917 – 31 October 1984), was an Indian politician, stateswoman and a central figure of the Indian National Congress. She was the first and, to date, the only female Prime Minister of India. Indira Gandhi was the daughter of Jawaharlal Nehru, the first prime minister of India. She served as Prime Minister from January 1966 to March 1977 and again from January 1980 until her assassination in October 1984, making her the second longest-serving Indian Prime Minister after her father. 
Gandhi served as her father's personal assistant and hostess during his tenure as Prime Minister between 1947 and 1964. She was elected President of the Indian National Congress in 1959. Upon her father's death in 1964 she was appointed as a member of the Rajya Sabha (upper house) and became a member of Lal Bahadur Shastri's cabinet as Minister of Information and Broadcasting. In the Congress Party's parliamentary leadership election held in early 1966 (upon the death of Shastri), she defeated her rival Morarji Desai, to become leader, and thus succeeded Shastri as Prime Minister of India.