The concept of the `Four Pillar State` refers to a political ideology that advocates for the separation of powers and the decentralization of authority within a state. It suggests that the traditional district magistracy system, which concentrates power in the hands of a few officials, should be eliminated in favor of a more democratic and representative form of governance.

Option 1: Late Lajpat Rai was a prominent Indian independence activist, but there is no evidence to suggest that he suggested the concept of the `Four Pillar State`.

Option 2: Ram Manohar Lohia, a socialist leader and activist, did propose the concept of the `Four Pillar State`. He believed that decentralizing power would lead to a more equitable distribution of authority and resources.

Option 3: Raja Rammohan Roy was a social and educational reformer in the 19th century. While he was influential in advocating for social and religious reforms, there is no evidence to suggest that he proposed the concept of the `Four Pillar State`.

Option 4: Subash Chandra Bose was a prominent leader in the Indian independence movement. While he believed in strong and decisive leadership, there is no indication that he proposed the concept of the `Four Pillar State`.

Therefore, the