Mamata Banerjee's unprecedented coup in Meghalaya -- the joining of 12 of 17 Congress MLAs led by Mukul Sangma late last evening -- started with a meeting between election strategist Prashant Kishor and the senior Congress leader. At a press conference earlier today, Mr Sangma shared that he had met Mr Kishor in Kolkata as he was a "good friend... who can make a difference".