Politburo of the Communist Party of India (Marxist)
The Politburo, also known as the Political Bureau, is the highest executive authority of the Communist Party of India (Marxist) (CPI(M)). Its members are elected by the Central Committee, which is in turn elected at the Party Congress, typically convened every three years.
Source: Wikipedia — Politburo of the Communist Party of India (Marxist) (CC BY-SA 4.0)