Explanation:

- Dadabhai Naoroji: Known as the "Grand Old Man of India," Naoroji was a prominent leader and an early vocal critic of British economic policy in India. He was one of the founding members of the Indian National Congress.

- Chittaranjan Das: Popularly known as 'Deshbandhu,' which means 'Friend of the Nation'. He was a prominent lawyer and freedom fighter, closely associated with the Non-Cooperation Movement and renowned for his role in the Indian independence movement.

- Ashutosh Mukherjee: Known as "Banglar Bagh" (Tiger of Bengal), he was a distinguished scholar and educationist, who contributed significantly to the Indian education system but wasn't called 'Deshbandhu'.

- Madan Mohan Malaviya: Celebrated for his role in the Banaras Hindu University and as an educationist, he was an influential freedom fighter, but not known as 'Deshbandhu'.