New Delhi, April 27 -- Aam Aadmi Party (AAP) MP Sanjay Singh on Sunday petitioned the Rajya Sabha Chairman CP Radhakrishnan to disqualify seven MPs, who recently announced a merger with the Bharatiya Janata Party (BJP). The petition challenged the "purported merger" under paragraph 4 of the Tenth Schedule of the Constitution and sought the disqualification of the MPs under its paragraph 2(1)(a). Paragraph 2 of the Tenth Schedule deals with disqualification on the ground of defection. RELATED REPORTS ON PAGE 2...