Buniyadpur: Prime Minister Narendra Modi on Saturday said he had earlier erred in judging Trinamool Congress chief Mamata Banerjee as he used to consider her an embodiment of simplicity who wanted to free the people of West Bengal from the rule of the Leftists, but realised his mistake once he got to know of her misdeeds after ascending to the high office.

Addressing an election meeting in this town in South Dinajpur district, Modi said the people had reposed a lot of faith in 'Mamata didi', who had hoodwinked the "Ma, Mati and Manush" (mother, soil and people -- Banerjee' pet slogan) of the state.