Who is known as the 'Grand Old Man of India' and set out the drain theory of British rule?

Explanation

1. 01

   Dadabhai Naoroji argued that Britain was draining India's wealth, most fully in 'Poverty and Un-British Rule in India' (1901).

2. 02

   He was three times President of the Congress and the first Indian elected to the British House of Commons, in 1892.