PM Modi tweeted,
On his birth anniversary, I bow to Swami Vivekananda. He is a personal inspiration, whose thoughts & ideals have influenced me deeply.- Narendra Modi (@narendramodi) January 12, 2015
He described Swami Vivekananda as "one of the most prolific thinkers and a guiding light who took India's message to the entire world."
The day is being celebrated as the 'Youth Day'.
"Let us pledge to leave no stone unturned to integrate our youth in India's progress and ensure youth-led development across the Nation," the Prime Minister said.