Ex-Delhi Social Development Minister Sandeep Kumar tweeted on Thursday that he was being targeted as he was a Dalit.
He also alleged there was a "conspiracy" behind the alleged sex tape to frame him.
"I am a Dalit and I am paying for it. There is some conspiracy against me," Sandeep Kumar tweeted.
"Charging and proving anything on people like me with the money power is not a big deal," he said.
"I have got a statue of Baba Saheb Bhim Rao Ambedkar at my house and I talk about Dalits and thats why I am being targetted," Kumar added.
Kumar was sacked as minister on Wednesday by Delhi Chief Minister Arvind Kejriwal saying he had received an "objectionable" CD on him and there cannot be any compromise with propriety in public life.
He is the third minister who has been removed from cabinet by Kejriwal since the formation of the city government in February last year.