Paying tributes to Dr Bhim Rao Ambedkar on his death anniversary, Bahujan Samaj Party chief Mayawati on Tuesday said failure of successive governments in the country in converting the Constitution's ideals into ground reality for people's welfare is sad and worrying.

"Tributes to the most respected Babasaheb Dr. Bhimrao Ambedkar, who gave a completely public-friendly, welfare and egalitarian Constitution to the country, on his death anniversary. By giving the best Constitution in every respect is priceless and it enhanced India's stature. The country is eternally grateful to him," Mayawati said in a tweet in Hindi.