On 25 December 1925, a communist conference was organised in Kanpur, attended by around 500 delegates (according to colonial authorities). The conference was convened by Satyabhakta, who argued for a concept of “National Communism” and opposed subordination to the Communist International (Comintern). However, his views were outvoted by the other delegates, and in protest, he left the venue.
The conference adopted the name “Communist Party of India (CPI)”. Groups such as the Labour Kisan Party of Hindustan (LKPH) merged into this unified CPI. The émigré CPI, which until then had limited organic character, was effectively replaced by the organisation now functioning inside India.
Following the 1926 conference of the Workers and Peasants Party (WPP) of Bengal, the underground CPI directed its members to work through provincial WPPs, which became the open front organisations of Indian communists. All legal communist activities were channelled through these parties.
At the Sixth Congress of the Communist International (1928), international strategy shifted after the Kuomintang turned against Chinese communists (1927). The Colonial Theses of the Congress urged Indian communists to:
Combat the “national-reformist leaders”.
Expose the passive resistance tactics of Swarajists and Gandhists.
Utilise the contradictions between the national bourgeoisie and British imperialists.
Although the Swarajist Party was not seen as a direct enemy, it was considered unreliable as an ally. The Congress also denounced the WPP, and the Tenth Plenum of the Comintern (July 1929) instructed Indian communists to break away. With the communists’ exit, the WPP collapsed.
On 20 March 1929, leaders of the WPP, CPI, and other labour movements were arrested across India in what became known as the Meerut Conspiracy Case. The colonial government sought to suppress communist influence by charging the leadership with conspiracy against the state.
The trial lasted four years, during which much of the CPI leadership remained behind bars, severely restricting the Party’s open activities.
By 1934, the main centres of CPI activity were Bombay, Calcutta, and Punjab, with the Party gradually expanding into Madras Presidency. During this period, a group of Andhra and Tamil students, including P. Sundarayya, were recruited into the Party by veteran communist Amir Hyder Khan.
This marked the beginning of a new phase of expansion for the CPI, with stronger organisational roots in southern India.
The Communist Party of India (CPI) has long been recognised by the Election Commission of India (ECI) as a National Party. Notably, it remains the only national political party in India to have contested all general elections using the same electoral symbol.
However, following its massive defeat in the 2019 Indian General Election, where its parliamentary tally was reduced to just two MPs, the ECI issued a notice to the CPI seeking reasons why its national party status should not be revoked. If the Party performs at a similar level in the next general election, it risks losing its national party status.
At the national level, the CPI extended support to the Congress-led United Progressive Alliance (UPA) government along with other Left parties, though it did not participate in the government. When the UPA assumed power in May 2004, it adopted a Common Minimum Programme (CMP) as its policy framework. The Left’s support to the UPA was conditional upon strict adherence to this programme, which included:
Discontinuation of disinvestment in public sector undertakings.
Large-scale social sector outlays to uplift the marginalised.
Pursuit of an independent foreign policy free from external influence.
On 8 July 2008, CPI(M) General Secretary Prakash Karat announced that the Left parties were withdrawing support from the UPA government. This was in response to the government’s decision to proceed with the United States–India Civil Nuclear Agreement (also known as the Peaceful Atomic Energy Cooperation Act). The Left parties strongly opposed the deal, arguing that it compromised India’s sovereignty and national interests.