Who coined the phrase, ‘Unity in Diversity’ ?

GK questions about who 'coined' or 'popularised' a phrase test documented authorship — credit goes to the person a standard textbook, archive, or their own recorded speech/writing names as its source, not merely to anyone who championed the idea it expresses.

Pt. Jawaharlal Nehru is the leader credited with coining and popularising 'Unity in Diversity' to describe India's pluralistic culture. NCERT/SCERT civics material and IGNOU study material both name it as his phrase, and Nehru delivered a documented address titled 'Unity in Diversity' (19 October 1952) making the same case for India's composite national character.

Why the other leaders do not fit:

• Mohandas Karamchand Gandhi worked for communal harmony and non-violent unity throughout his life, but standard references do not credit him with coining this specific phrase — his broader unity work is often mistaken for authorship of this quote.

• Subhash Chandra Bose is remembered for leading the Indian National Army and for the 'Jai Hind' greeting, a different strand of the freedom movement from the authorship of this cultural phrase.

• Sardar Vallabh Bhai Patel's defining legacy is the political and administrative integration of over 500 princely states into the Indian Union — a structural unity achievement, distinct from coining this cultural phrase.

Note on 'coined': strictly speaking, the exact wording had already been used earlier — for example in an 1896 lecture by Swami Vivekananda — so Nehru was not literally the first person ever to utter it. However, in the Indian civics/history curriculum this question is drawn from, Nehru is the specific figure officially credited with coining and popularising this exact description of India: SCERT's civics textbook states that Nehru coined the phrase to describe the country, and IGNOU study material calls it his catch-phrase, anchored further by his own documented 1952 address titled 'Unity in Diversity'. Among the four leaders offered here, only Nehru carries this documented credit — Gandhi, Bose, and Patel are each credited with other, distinct legacies of their own, as explained above.