Reserve Bank of India Governor Urjit Patel was on Thursday shown black flags at the Kolkata airport during a protest by Congress workers against demonetisation. 

Police sources said when the RBI Governor arrived at the N S C Bose airport, Congress workers staged a demonstration and showed him black flags. They also raised slogans "Urjit Patel go back" and "Urjit Patel hai hai". 

The security personnel managed to escort the RBI Governor inside the airport. Earlier in the day, Trinamool Congress and the CPI(M) had staged a demonstration outside the RBI office where Patel was present during the central board meeting of RBI.

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