Modi, at the rally, also slammed Congress leader Sam Pitroda over his 'hua to hua' remarks on 1984 anti-Sikh riots, saying it reflected the Congress's arrogance.
Asked whether the party would take any action against Aiyar, Congress spokesperson Surjewala said an appropriate forum in the party will definitely look at it and take appropriate action.
'Neech' remark row: Kushwaha invokes Modi's attack on Priyanka Gandhi in his campaign against Nitish
She had used the term "neech rajniti" to attack the BJP, and Modi, then his party's prime ministerial candidate, had invoked his backward caste origins to accuse her of targeting his background.
Pointing out remarks made by other BJP leaders, Congress leader Ajoy Kumar cited objectionable remark by Tarun Vijay about south Indians and V.K. Singh equating a Dalit child with a dog in Ghaziabad.
Ready for any punishment if Congress suffers in Gujarat polls because of my comments: Mani Shankar Aiyar
Aiyar, who was suspended yesterday, said the Congress party had given him a lot and there was no future for India without the party.
Aiyar has called Prime Minister a "neech aadmi" but apologised later when Rahul Gandhi tweeted that the Congress party does not endorse such language and expected an apology.
Aiyar attacked Modi after the latter accused the Congress of seeking votes in B R Ambedkar's but trying to erase his contribution to building India.