The Political Bureau (Politburo) of the Communist Party of India (Marxist) is the highest body of the Communist Party of India (Marxist). The members of the Politburo are elected by the Central Committee in the immediate aftermath of a National Party Congress, which is held every three years.
The 21st Politburo was elected at the 21st party congress of CPI(M), held in Visakhapatnam in April 2015.
The 20th Politburo was elected at the 20th party congress of CPI(M), held in Calicut in April 2012.
The 19th Politburo was elected at the 19th party congress of CPI(M), held in Coimbatore from 29 March – 3 April 2008.
The 18th Politburo was elected at the 18th party congress of CPI(M), held in Delhi from 6-11 April 2005.
The 17th Politburo was elected at the 18th party congress of CPI(M), held in Hyderabad from 19-24 March 2002.
The 16th Politburo was elected at the 16th party congress of CPI(M), held in Calcutta from 5-11 October 1998.
The 15th Politburo was elected at the 15th party congress of CPI(M), held in Chandigarh from 2-8 April 1995.
The 14th Politburo was elected at the 14th party congress of CPI(M), held in Madras from 3-10 January 1992.
The 13th Politburo was elected at the 13th party congress of CPI(M), held in Trivandrum in January 1989.
The 12th Politburo was elected at the 12th party congress of CPI(M), held in Calcutta from 24-29 December 1986.
The 11th Politburo was elected at the 11th party congress of CPI(M), held in Vijayawada from 26-31 January 1982.
The 10th Politburo was elected at the 10th party congress of CPI(M), held in Jalandhar from 2-8 April 1978.
The 9th Politburo was elected at the 10th party congress of CPI(M), held in Madurai from 27 June – 2 July 1972.
The 8th Politburo was elected at the 8th party congress of CPI(M), held in Kochi from 23 - 29 December 1968.