Meghalaya Chief Minister Conrad Sangma, who is also the president of the National People's Party, brushed off the challenge from Mamata Banerjee in the upcoming state polls, tagging her party Trinamool an "outsider". Mr Sangma added that he has the "greatest respect" for her. "I have the greatest and the deepest respect for Mamata Banerjee and the reason is the kind of respect she has shown to our leader (PA Sangma). We Can't forget that. I have deep a sense of respect for her," he said.