Asserting that BJP is not afraid of anyone, he said those involved in the scam will be arrested and put behind bars.
"You (Mamata) are not protesting against duping of 17 lakh investors in the Saradha scam and coming down on the streets, because your own associates and stooges are involved. We need an answer as to who took away the Saradha scam money.
Asking the Chief Minister to reign in her workers and associates who are alegedly involved in corruption and scam, he said, "If you can't do that then please step down. BJP will provide good governance in Bengal. The countdown has already started and the people of Bengal will show you the way out in the 2016 Assembly polls," he said.
More From This Section
"More than 2,000 farmers had lost their land in Nandigram and Singur and you had gone on fast protesting against that injustice. But in this Saradha scam more than 17 lakh people of Bengal have lost their deposits.
"Why don't you (Mamata) feel like sitting on a fast against this scam? Why aren't you coming down on the roads for those who lost their savings?" Shah asked.
Shah alleged that Bangladeshi infiltration has gone up by five times in the Trinamool regime as Banerjee was only pursuing politics rather than developing the state.
"Bangladeshi infiltration has gone up by five times in the TMC regime. If one Bangladeshi infiltrator comes here, then he takes away the job of a Bengali youth and education of a youth. But Mamata is more interested in politics than development of Bengal. She has to stop infiltration and rising crimes in the state," he said.
Accusing the erstwhile Left regime of "ruining Bengal", the BJP president said the much-hyped political change was of no use as both Trinamool and the Left were "cousins".