Official Opposition is a term used in India

India

India , officially the Republic of India , is a country in South Asia. It is the seventh-largest country by geographical area, the second-most populous country with over 1.2 billion people, and the most populous democracy in the world...

 to designate the political party which has secured the largest number of seats in the Lower House of parliament (Lok Sabha

Lok Sabha

The Lok Sabha or House of the People is the lower house of the Parliament of India. Members of the Lok Sabha are elected by direct election under universal adult suffrage. As of 2009, there have been fifteen Lok Sabhas elected by the people of India...

) but is not a part of the ruling party or coalition.

A political party is officially accorded the status of an opposition party in Lok Sabha, only if it secures at least 10 percent of the seats.

• 1984 - 1989: Telugu Desam Party
  Telugu Desam Party
  Telugu Desam Party or TDP is a regional political party in India's Andhra Pradesh state. It was founded by former Telugu film star N. T...
  
  
• 1989 - 1991: Indian National Congress
  Indian National Congress
  The Indian National Congress is one of the two major political parties in India, the other being the Bharatiya Janata Party. It is the largest and one of the oldest democratic political parties in the world. The party's modern liberal platform is largely considered center-left in the Indian...
  
  
• 1991 - 1998: Bharatiya Janata Party
  Bharatiya Janata Party
  The Bharatiya Janata Party ,; translation: Indian People's Party) is one of the two major political parties in India, the other being the Indian National Congress. Established in 1980, it is India's second largest political party in terms of representation in the parliament...
  
  
• 1998 - 2004: Indian National Congress
• 2004 - 2009: Bharatiya Janata Party
• 2009- : Bharatiya Janata Party