West Bengal Police concurrent with the eighteen revenue districts of the State (excluding the metropolitan city of Kolkata) which comprises one of the two general police districts of West Bengal as under the Police Act 1861. The other general police district consists of the major portions of the metropolitan area of Kolkata, and has a separate police force (Kolkata Police) constituted and administered under the Calcutta Police Act 1866 & Calcutta (Suburban Police) Act 1866. This arrangement, unique in India, was conceived during colonial times when Calcutta was the capital of British India. The city police have been kept independent of the state
1957 West Bengal Legislative Assembly election between the Communist Party of India, the Praja Socialist Party, the Forward Bloc, Marxist Forward Bloc and the Revolutionary Socialist Party) and the United Left Front (comprising the Socialist Unity Centre of India, the Bolshevik Party of India, the Republican Party and the Democratic Vanguard). A third alliance was the United Democratic People's Front, consisting of Bharatiya Jana Sangh, Hindu Mahasabha and the Revolutionary Communist Party of India. The election was won by the Indian National Congress, who got a majority of its own in the assembly. The communists became the largest opposition party. 1957 West Bengal Legislative Assembly election