Consider the following pairs::   1. Radhakanta Deb: First President of the British Indian Association 2. Gazulu Lakshminarasu Chetty: Founder of the Madras Mahajana Sabha 3. Surendranath Banerjee: Founder of the Indian Association Which of the above pairs is/are correctly matched?

Pairs 1 and 3 are correct, so the answer is B. Radhakanta Deb was the first president of the British Indian Association, formed in 1851 by merging the Landholders' Society and the Bengal British India Society. Surendranath Banerjee founded the Indian Association in 1876, and it became an important base for early nationalist politics in Bengal.

Pair 2 is wrong. Gazulu Lakshminarasu Chetty was linked with the Madras Native Association (1852) and other early Madras bodies, but the Madras Mahajana Sabha was founded in 1884 by M. Veeraraghavachariar, P. Anandacharlu and G. Subramania Iyer.

Core concept: the associational politics of the 1850s to 1880s, which prepared the ground for the Indian National Congress. For Mains, the move from elite petitioning bodies to organised public politics is a useful GS-1 modern India theme.

Trap: aspirants know Chetty as a Madras figure and assume he founded the Mahajana Sabha, so the pair looks right.