"He (Modi) is 'neech kism ka aadmi' (a vile man) who has no 'sabhyata' (civility)," he said, attacking Modi after the latter accused the Congress of seeking votes in B R Ambedkar's but trying to erase his contribution to building India.
The prime minister, while inaugurating the Ambedkar International Centre that was conceived 23 years ago, hit out at the Congress, saying parties seeking votes in Ambedkar's name tried to erase his contribution to nation building.
"Such was his (Ambedkar's) incredible strength that when years after his demise efforts were made by such people to crush his philosophy, when efforts were made to erase his contribution towards nation building, his ideals could not be wiped out from people's memory," he said.
He said he would not be wrong in saying that "more people are still influenced by his (Ambedkar's) ideas than the family for which such efforts (to erase his contribution) were made".
Aiyar claimed that it was the country's first prime minister Jawaharlal Nehru who recognised Ambedkar's potential.
"What is the need for doing dirty politics on such an occasion?" he asked.