Aam Aadmi Party leader Raghav Chadha today wrote to Rajya Sabha Chairman Jagdeep Dhankhar opposing even the introduction in the Parliament of the controversial Ordinance passed by the Centre which snatched control over bureaucracy from the Delhi government. Calling it "blatantly unconstitutional", Mr Chadha listed three reasons why he believes the introduction of the Ordinance is "impermissible".