West Bengal Chief Minister Mamata Banerjee on Wednesday expressed grief over the death of Maharashtra Deputy Chief Minister Ajit Pawar in a plane crash in Pune district. However, she hinted at the possibility of foul play in the incident and has demanded a probe under the supervision of Supreme Court. Banerjee said the death of Pawar comes at a time when he was about to return to Sharad Pawar’s party and therefore it should be investigated.