The 135th birth anniversary of Dr B.R. Ambedkar, the principal architect of the Indian Constitution and a champion of social justice, will be commemorated at the Prerna Sthal, Parliament House Lawns, here on Monday.

President Droupadi Murmu, Vice President Jagdeep Dhankhar, Prime Minister Narendra Modi, Lok Sabha Speaker Om Birla and other dignitaries will pay floral tributes to Babasaheb in a morning ceremony.