Which leader is best known for sharp attacks on Nehru?

Ram Manohar Lohia

Ram Manohar Lohia is best known for sharp attacks on Nehru, the strategy of non-Congressism, etc.

Ram Manohar Lohia (1910-1967) was a prominent socialist leader and intellectual who actively participated in the Indian freedom movement. He was one of the key figures in the establishment of the Congress Socialist Party, and following the division within the main party, he assumed leadership roles in both the Socialist Party and the later-formed Samyukta Socialist Party.
Serving as a Member of the Lok Sabha from 1963 to 1967, Lohia made significant contributions to India's political landscape. He also held the position of founder editor for "Mankind" and "Jan," publications recognized for their original contributions to non-European socialist theories.
Lohia's political influence was underscored by his distinct perspectives. He gained recognition for his direct criticisms of Jawaharlal Nehru, his strategic approach of advocating non-Congressism, his fervent support for the reservation of opportunities for backward castes, and his vocal opposition to the continued prominence of the English language.
Throughout his life, Ram Manohar Lohia left an enduring mark as a forward-thinking socialist leader and a catalyst for thought-provoking discussions on social justice, political strategies, and language policies.