<Ul> <Li> 1950 - 1977: No party achieved the said 10% of total seats, other than ruling congress (+ coalition). </Li> <Li> 1977 - 1979: Indian National Congress </Li> <Li> 1984 - 1989: Telugu Desam Party (Only regional party to hold office) </Li> <Li> 1989 - 1991: Indian National Congress </Li> <Li> 1991 - 1998: Bharatiya Janata Party </Li> <Li> 1998 - 2004: Indian National Congress </Li> <Li> 2004 - 2009: Bharatiya Janata Party </Li> <Li> 2009 - 2014: Bharatiya Janata Party </Li> <Li> 2014 - 2019: None, Among all the parties none has secured 10% of the total seats (54 / 543). </Li> </Ul> <Li> 1950 - 1977: No party achieved the said 10% of total seats, other than ruling congress (+ coalition). </Li> <Li> 1977 - 1979: Indian National Congress </Li> <Li> 1984 - 1989: Telugu Desam Party (Only regional party to hold office) </Li>

What is the role of opposition party in india