India, April 25 -- AAP's political crisis got messier on Friday. Seven of its Rajya Sabha MPs, led by Raghav Chadha, announced they were leaving the party. Chadha said all seven had merged with the BJP - but only a handful have clearly confirmed the move. The rest? Still not so clear.

Dropping the big bomb, Chadha said the group had taken a collective decision. "We have decided that we, 2/3rd of members belonging to the AAP in Rajya Sabha, exercise the provisions of the Constitution of India and merge with the BJP," he said at a press conference, seated alongside Sandeep Pathak.

He added that all seven MPs had signed a letter and submitted it to the Rajya Sabha chairman CP Radhakrishnan. Of those named, three are clearly on record - Rag...