Kolkata, May 7 -- Chandranath Rath, personal assistant to BJP leader Suvendu Adhikari, was shot dead by unidentified assailants in Madhyamgram, North 24 Parganas, late on Wednesday night - the most serious act of post-election violence in West Bengal since the BJP swept the assembly polls two days ago, winning 207 of 294 seats.

"Chandranath Rath has been shot dead. He was rushed to a hospital where he was declared dead. Investigation is going on," said a senior officer of the Barasat police district, who asked not to be named.

According to BJP leader Koustav Bagchi, motorcycle-borne assailants followed Rath's vehicle before stopping it near Doharia in Madhyamgram and opening fire while Rath remained inside. Another person in the vehicle...