Short answers, pulled from the story.
Indira Gandhi was an Indian stateswoman who served as prime minister of India from 1966 to 1977 and again from 1980 until her assassination in 1984. She was India's first and only female prime minister and the leader of the Indian National Congress. She was the daughter of Jawaharlal Nehru and the mother of Rajiv Gandhi.
Indira Gandhi was assassinated on the 31st of October 1984 by two of her Sikh bodyguards, Satwant Singh and Beant Singh, at the prime minister's residence at 1 Safdarjung Road in New Delhi. The killing was carried out in revenge for Operation Blue Star, the army assault on the Golden Temple. She was declared dead at 2:20 PM at AIIMS Delhi.
The Emergency was a state of emergency Indira Gandhi imposed from 1975 to 1977, declared by President Fakhruddin Ali Ahmed under Article 352(1) of the Constitution on the 25th of June 1975. During it she ruled by decree, civil liberties were suspended, the press was censored, and more than 100,000 political opponents, journalists and dissenters were imprisoned.
Operation Blue Star was a military action Indira Gandhi ordered in June 1984, sending the Indian army into the Golden Temple to remove Jarnail Singh Bhindranwale and his armed followers. The army used heavy artillery and tanks, damaging the Akal Takht shrine and the Sikh library, with casualty estimates ranging from many hundreds to many thousands.
India went to war with Pakistan in December 1971 in support of the independence movement in East Pakistan, after Pakistani repression drove 10 million refugees into India. The war ended in an Indian victory, the independence of Bangladesh, and the surrender of about 93,000 Pakistani soldiers, the largest surrender since World War II.
Indira Gandhi was known as Mother Indira, or Indira Amma, among India's poor and rural population because of her anti-poverty campaign built around the slogan Garibi Hatao, meaning Remove Poverty. She remains a left-wing icon to the rural and urban poor, Dalits, minorities and women in India.