Communist Party of India
Communist Party of India (Marxist)
Minor Left Parties
Janathipathiya Samrakshana Samithy led by K. R. Gowri Amma
Communist Marxist Party (Rajeshkumar) led by M.V. Rajeshkumar
Satyashodhak Communist Party
Bolshevik Party of India
Revolutionary Communist Party of India (RCPI) led by Biren Deka[1]
Revolutionary Socialist Party (Leninist) Kovoor led by Kovoor Kunjumon
Revolutionary Socialist Party (Leninist) Ambalathara led by Ambalathara Sreedharan Nair
Revolutionary Socialist Party (Marxist) Prem Sudha led by Prem Sudha
Marxist Forward Bloc
Workers Party of India
Socialist Unity Centre of India (Communist)
Marxist Communist Party of India (United)
Revolutionary Marxist Party of India
Communist Party of India (Marxist-Leninist) Liberation led by Dipankar Bhattacharya
Communist Party of India (Marxist–Leninist) Class Struggle led by Kanu Sanyal
Communist Party of India (Marxist–Leninist) Red Flag led by P.C. Unnichekkan
Communist Party of India (Marxist-Leninist) Red Star led by K.N. Ramchandran
Communist Party of India (Marxist-Leninist) New Democracy led by Yatendra Kumar
Communist Party of India (Marxist-Leninist) Somnath led by Somnath Chatterjee Ukhra and Pradip Banerjee
Communist Party of India (Marxist-Leninist) Shantipal
Communist Party of India (Marxist-Leninist) Praja Pantha
Communist Party of India (Marxist-Leninist) Jan Samvad
Communist Party of India (Marxist-Leninist) Nai Pahal
Communist Party of India (Marxist-Leninist) New Proletarian
Communist Party of India (Marxist-Leninist) Maharashtra
Provisional Central Committee, Communist Party of India (Marxist-Leninist) led by Santosh Rana
Unity Centre of Communist Revolutionaries of India (Marxist-Leninist) (D.V. Rao)
Communist Ghadar Party of India
Communist Party of Bharat led by Ranjan Chakraborty
Marxist-Leninist Committee led by K. Venkateswar Rao
Communist Party of India (Maoist) led by Muppala Lakshmana Rao
Revolutionary Communist Centre of India (Marxist-Leninist-Maoist)
Communist Revolutionary Centre
Communist Party of United States of India led by Veeranna
Communist Party of India (Marxist-Leninist) Janashakti - Koora Rajanna led by Koora Rajanna
Communist Party of India (Marxist-Leninist) Janashakti - Ranadheer led by Ranadheer
Communist Party of India (Marxist-Leninist) Janashakti - Chandra Pulla Reddy led by Chandra Pulla Reddy
Communist Party of India (Marxist-Leninist) (Mahadev Mukherjee) led by Mahadev Mukherjee
Communist Party of India (Marxist-Leninist) Bhaijee
Communist Party of India (Marxist-Leninist) Prajashakti
Communist Party of India (Marxist-Leninist) Prathighatana
Communist Party of India (Marxist-Leninist) Praja Pratighatana
Communist Party of India (Marxist–Leninist) Second Central Committee
Communist Party of India (Marxist-Leninist) Central Team
Communist Party Reorganisation Centre of India (Marxist-Leninist)
Communist League of India (Marxist-Leninist) Ramnath
Communist League of India (Marxist-Leninist) Parikalpana
Communist League of India (Marxist-Leninist) Revisionist
Re-organizing Committee, Communist League of India (Marxist-Leninist)
All India Forward Bloc
Revolutionary Socialist Party
Peasants and Workers Party of India
Revolutionary Socialist Party (Bolshevik) led by A. V. Thamarakshan
Confederation of Indian Communists and Democratic Socialists (CICDS)
United Communist Party of India led by Mohit Sen
Communist Marxist Party (John) led by CP John
Party of Democratic Socialism led by Saifuddin Choudhury and Samir Putatundu
Communist Revolutionary League of India (CRLI) led by Ashim Chatterjee
Peoples Revolutionary Party of India (Paschimbanga Ganatantrik Manch) led by Sumantha Hira
Tripura Ganatantrik Manch led by Ajoy Biswas
Janganotantrik Morcha led by Ajoy Biswas
Marxist Manch of Assam
Orissa Communist Party led by Ajay Rout
Krantikari Samyavadi Party based in Bihar
Rashtravadi Communist Party based in Uttar Pradesh
Madhya Pradesh Kisan Mazdoor Adivasi Kranti Dal
Communist Party of Revolutionary Marxists based in Darjeeling
Marxist Co-ordination Committee
Lal Nishan Party (Leninvadi)
Revolutionary Communist Party of India (Das)
Telangana Communist Party
Janathipathiya Samrakshana Samithy (Satyajith) led by V. Satyajith
Revolutionary Socialist Party of India (Marxist-Leninist)
New Socialist Alternative