Dadabhai Naoroji is known as the Grand Old Man of India. He is called so because of his 61 long years of immense contribution to Indian freedom struggle against the British. He served 40 years before the formation of INC and 21 more years after that.
Mahad Satyagraha was a Satyagraha led by Dr. B. R. Ambedkar on 20 March 1927 to allow untouchables to use water in a public tank in Mahad (currently in Raigad district), Maharashtra, India.