The move prompted Lt Governor Najeeb Jung's office to come out with a statement in which it justified his decision not to go for a high-level investigation into the case, citing an inquiry report by Justice Mukul Mudgal committee.
Earlier in the day, AAP government transferred Home Secretary Dharam Pal, after he signed a notification appointing Joint Commissioner of Delhi Police M K Meena as new Chief of Anti-Corruption Branch (ACB) following orders from Jung.
Despite Delhi Government's order, Meena said he was holding charge of the post as he has got the orders from the competent authority.
"I am still holding charge because I have got the orders from the competent authority. We had conducted a meeting with all officers. Our action will be impartial," said Meena.
Delhi government sources said ACB began the probe into the 2002 scam following instructions by Deputy Chief Minister Manish Sisodia and it is being headed by the agency's current Chief S S Yadav.