Kovind, Naidu, Modi also paid floral tributes to Ambedkar at a function in Parliament House Lawns here. Lok Sabha Speaker Sumitra Mahajan and several other MPs also paid tributes to the architect of the Indian Constitution.

"The nation is ever grateful to the architect of the Constitution. His wisdom will continue to guide us at all times," Naidu tweeted.

Paying floral tributes to Dr. B.R. Ambedkar on the 63rd Mahaparinirvan Diwas, in New Delhi today. The nation is ever grateful to the architect of the Constitution. His wisdom will continue to guide us at all times. #BRAmbedkar pic.twitter.com/LjU4mKrkz4

— VicePresidentOfIndia (@VPSecretariat) December 6, 2018

"He championed the cause of marginalised and strove for creating a casteless society. We will be paying a real tribute to Baba Sahebji by establishing a truly egalitarian society and by upholding values and ethics in public life," Naidu said.

"India bows to Babasaheb Ambedkar on Mahaparinirvan Diwas (death anniversary)," Modi tweeted.

पूज्य बाबासाहेब को उनके महापरिनिर्वाण दिवस पर कोटि-कोटि नमन।

India bows to Dr. Babasaheb Ambedkar on Mahaparinirvan Diwas. pic.twitter.com/XNqzXFbm9Y

— Narendra Modi (@narendramodi) December 6, 2018

He also shared a link of the audio highlighting the works and contribution of Ambedkar, who died on December 6, 1956 in Delhi.