The BJP on Tuesday described as an exercise in "cheap publicity and propaganda" the one-man Commission of Inquiry's communication to the NSA, in which it has sought names of officers to be part of its probe in the alleged irregularities in DDCA affairs.

Accusing former solicitor general Gopal Subramanium, who is heading the commission, of working at the behest of the AAP government, BJP asked Delhi chief minister Arvind Kejriwal to read the Constitution, alleging that his several decisions have been "unconstitutional".

"It is not within the legal purview of the Delhi government to probe the Delhi cricket board (DDCA) which is registered as a society under the Company Act. Subramanium is doing such drama at the behest of Kejriwal who is used to taking unconstitutional decisions," BJP secretary Shrikant Sharma said.

"It is nothing but part of its propaganda. Kejriwal should read the Constitution so that he can focus on what his government should be doing, like sanitation and preventing dengue from recurring, and not what it should not be doing," he said.

Subramanium has written to National Security Adviser Ajit Doval, seeking names of competent officers to become part of the investigation.

Sharma recalled that the AAP government had appointed Swati Maliwal as Delhi Commission for Women chairperson in an "unconstitutional" manner before they did it again in a proper way after being told by the LG.

Accusing Kejriwal of raking up the DDCA issue to deflect attention from the CBI probe against his principal secretary, he said the chief minister has a "history" of working to save the guilty and cited the example of the cases of two former law ministers, both arrested on criminal charges and now out on bail.

"AAP is in fact 'pakhandi' aam aadmi party (PAAP)," he said in a dig.

The more muck Kejriwal will throw at Prime Minister Narendra Modi and finance minister Arun Jaitley, the more he will sink into it, Sharma said.