evidence: Addressing a massive rally in this part of north Bengal, the PM took jibes at the Trinamool Congress (TMC) chief saying that she is the speed-breaker in the path of the state’s progress. Prime Minister Narendra Modi on Wednesday launched a scathing attack on West Bengal Chief Minister Mamata Banerjee in West Bengal’s Siliguri. [...] The rally at Siliguri was the first of the two the PM was scheduled to address in the politically-sensitive state, where Trinamool Congress (TMC) rules with an iron hand.