Who is known as the 'Grand Old Man of India'?

The correct answer is Option (4) → Dadabhai Naoroji

Dadabhai Naoroji (1825–1917) is called the ‘Grand Old Man of India’. One of the founders of the Indian National Congress and three times its President, he put forward the drain theory in his book Poverty and Un-British Rule in India, showing how India’s wealth was drained to Britain. In 1892 he became the first Indian member of the British House of Commons.