Those who demanded the chief minister's resignation included former deputy chief minister R Ashok and MP Shobha Karandlaje.
Speaking to reporters, Karandlaje attacked the state government for "weakening" the institution of Lokayukta by constituting the ACB, which is controlled by the chief minister.
"The ACB is not an autonomous body in its true sense. It takes directions from the chief minister and Siddaramaiah is using it to target the opposition leaders by foisting false cases against them," she alleged.
Karandlaje alleged that the FIRs were filed "in retaliation" to the Income Tax raids at minister D K Shivakumar's property, during the stay of a number of Gujarat Congress MLAs at a resort here.
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She also condemned the ACB for putting pressure on the then special land acquisition officer of the Bengaluru Development Authority, H Basavarajendra, to "frame" Yeddyurappa.
He had also claimed that he was named as an accused in the case because he refused to do so.
In a counter to his allegations, the ACB had released a statement, saying it was a feeble attempt by Basavarajendra to build a false defence.
Ashok said the officer's complaint proved that the FIRs against Yeddyurappa were politically motivated.
Yeddyurappa is the first chief minister in south India to step down while in office following corruption charges.