New Delhi, Sep 08 (ANI): Political leaders on Monday react over BJP President Amit Shah's attack on West Bengal Chief Minster Mamata Banerjee over Saradha chit fund scam. Shah took jibe during a rally in Kolkata city for the state by-polls. While others were of the view that political rivalry should not include independent intelligence agencies, BJP slammed Banerjee for mis-governance. Shah had also alleged that Bangladeshi infiltration has gone up by five times in the Trinamool regime as Mamata Banerjee was only pursuing politics rather than developing the state.