"I won't be surprised if this has been done by BJP Dirty Tricks Department to embarrass AAP. Would Jaitley take action against Donors?" Singh said in a tweet.

Stating that he was not a "great admirer" of Kejriwal, the senior Congress leader, however, said that the AAP leader is "right when he challenges BJP to take action against those who have given Rs 2 crore by cheque".

The group, AAP Volunteer Action Manch (AVAM), claimed that the money was donated to AAP on the midnight of April 15 last year.

Karan Singh and Gopal Goel of AVAM alleged that four donations, worth Rs 50 lakh each, from four "dubious companies", were remitted to AAP's account.

AAP has described these allegations as being part of a conspiracy to tarnish its image ahead of the February 7 Delhi Assembly elections and challenged the government to get the matter investigated by any of its agencies.

Latching on to AVAM's allegations, BJP had attacked AAP, claiming its funding was dubious, and also accused the party of engaging in money laundering and pumping in black money.

The saffron party has also come out with a new advertisement accusing AAP of receiving funds from "dubious" companies.

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