An inquiry was on to ascertain the motive of Shiladitya Chowdhury, arrested after asking chief minister Mamata Banerjee a question during a rally at the former Maoist stronghold Belpahari, West Bengal director general of police Naparajit Mukherjee said on Monday.Meanwhile, state panchayat minister Subrata Mukherjee accused Chowdhury of conspiring to kill Banerjee.
