1980 - Indira Gandhi returns to power heading Congress party splinter group, Congress (Indira).
1984 - Troops storm Golden Temple - Sikhs' most holy shrine - to flush out Sikh militants pressing for self-rule.
1984 - Indira Gandhi assassinated by Sikh bodyguards, following which her son, Rajiv, takes over.
1984 December - Gas leak at Union Carbide pesticides plant in Bhopal. Thousands are killed immediately, many more subsequently die or are left disabled.
1987 - India deploys troops for peacekeeping operation in Sri Lanka's ethnic conflict.
1989 - Falling public support leads to Congress defeat in general election.
1990 - Indian troops withdrawn from Sri Lanka.