✔ a) Rabindranath Tagore

Explanation:
National anthem of India “Jana Gana Mana” was written by Rabindranath Tagore.
He also wrote “Amar Sonar Bangla” song which is the national anthem of Bangladesh.

About him
> Rabindranath Tagore was poet, novelist, playwright, musician, philosopher, and social reformer. He was born on 7th May 1861 in Calcutta, India.
> He was the first non-European to win the Noble Prize in Literature in 1913 for his collection of poems, Gitanjali.
> Tagore was also a composer, and he wrote around 2,000 songs.
> He was founded the Visva-Bharati University in Santiniketan in 1921.
> As a social reformer, he criticized caste discrimination, gender inequality, and colonialism also he supported the Swadeshi movement.
> He renowned with the Knighthood Bestowed by the British government, but he returned it after the Jallianwala Bagh massacre in protest.