"If Advani is Bhishma Pitamah, who would be Dhritrashtra, Shakuni, Duryodhan and other characters of BJP Mahabharata," Singh wrote on microblogging site Twitter.
In another tweet, he said, "...BJP certainly has its own "chaal" it's own "charitra" and it's own "chehra". Now guess who is what."
In his blog, Advani had on Sunday made a reference to a wounded Bhishma Pitamah lying on a bed of arrows in a scene in Mahabharata.
The reference was made by the sulking BJP veteran, who, citing ill-health, had stayed away from the party executive meet that elevated Modi the same day, anointing him as chief of BJP's Election Campaign Committee for the 2014 general elections.
Congress spokesperson Shakeel Ahmed also took a jibe at Opposition party leaders for speaking about Advani's virtues after he resigned from key party posts on Monday.
"BJP leaders say Advani is a father figure for us, but in place of son, they are trying to send the hapless father to Banwas. What a shame?" he tweeted.
In another tweet, he claimed that Advani met this fate as the Rashtriya Swayamsevak Sangh wanted to humiliate him for opposing the continuance of Nitin Gadkari as BJP president for the second time and B S Yeddyurappa as Karnataka chief minister after the surfacing of corruption allegations against them.
"By humiliating him, is RSS taking revenge on L K Advani for opposing its two blue eyed boys Gadkari and Yeddyurappa on the charges of corruption?" he tweeted.
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