When was The Congress Socialist Party (CSP) formed?

1934

The Socialist Party originated during the mass movement stage of the Indian National Congress in the pre-independence era.
In 1934, a group of young leaders formed the Congress Socialist Party (CSP) within the Congress, seeking a more radical and egalitarian approach.
In 1948, Congress amended its constitution, not allowing its members to have dual membership, forcing the Socialists to form a separate Socialist Party.
The Socialists differentiated themselves from both the Congress and the Communists by advocating democratic socialism.
The Socialists faced a dilemma when Congress declared its goal as a socialist pattern of society in 1955 (Avadi Resolution), making it difficult to present themselves as a distinct alternative.