Explanation:

Vinayak Damodar Savarkar, a prominent ideologue of Hindu nationalism, was a staunch advocate for Hindi, written in the Devanagari script, to be adopted as the national language of India. He believed that a common language and script were essential for fostering cultural unity and national identity. Bal Gangadhar Tilak also supported Hindi, but Savarkar's advocacy was particularly strong and influential in this regard. Gopal Krishna Gokhale focused more on constitutional reforms. Rajendra Prasad, as President of the Constituent Assembly, played a role in the language debates but was not the primary proponent of this specific suggestion.