During the National Movement, Congress passed a resolution on fundamental rights and economic policy by way of a major concession, to placate the Left Wing at which one of the following sessions?

The Congress passed the resolution on fundamental rights and economic policy at the Karachi Session in 1931. This was indeed a major concession to placate the Left Wing and socialist elements within the Congress. The resolution outlined fundamental rights including equality before law, freedom of speech, press, association, and economic policy emphasizing nationalization of key industries and services. It was presided over by Sardar Vallabhbhai Patel.