The 2019 Lok Sabha election in West Bengal is a traumatic memory for Ali Hussain Mansuri, a resident of Barrackpore, about 50 km Kolkata. Defections and cases Long before defections became commonplace in West Bengal politics, Barrackpore saw Arjun Singh, a four-term Trinamool Congress MLA, defect to the BJP. Emphasising his century-old family connection to the jute mills, Singh said, …