In what way does the national …

Our National anthem is surely an expression of national unity in the following ways:

a. It inculcates a sense of nationalism and love for one's country.
b. It was first sung in 1911, at the Congress session  in Calcutta that symbolised patriotic feeling of the people of the country bringing them together , against the British colonial rule. Later in 1950 the song, was adopted as the National Anthem.
c. Composed by Rabindranath Tagore, our national anthem reflects the diversity of the country in terms of religions, languages, regions and how such  a diversity forms our Motherland India .
d. It is our national anthem where people from varied backgrounds, irrespective of caste, creed, religion or *** stand up and sing in unison, paying respect and gratitude to the country.
e. It captures the very essence of our country .