The BJP on Monday staged a protest near the Delhi Assembly demanding Chief Minister Arvind Kejriwal's resignation over the alleged excise policy scam. Mr Kejriwal is the "mastermind" of the "liquor scam" and he will have to go, the BJP's Delhi unit Virendra Sachdeva charged as he led the protesters. Mr Kejriwal was on Sunday questioned for nearly nine hours by the Central Bureau of Investigation (CBI) as a witness in the liquor policy case.