An order had been issued on February 24 on filing the appeal, which the state anti-corruption ombudsman Lokayukta had also recommended, Law Minister T B Jayachandra told reporters here.
"Lokayukta had also recommended it. In that background, the Home Department has taken action and issued the order," he said, adding, the appeal would be in relation to 15-16 cases against Yeddyurappa.
His appointment to revive the fortunes of BJP had come after the Lingayat strongman got a breather from the High Court in January this year, when it quashed the proceedings against him in relation to 15 FIRs registered by the Lokayukta police over denotification of lands in alleged violation of rules.
After Yeddyurappa's return as BJP chief, Siddaramaiah had indicated recently that the government was mulling filing the appeal and the Law Department would take a decision.
He returned to BJP following the announcement of Modi as party's prime ministerial candidate ahead of 2014 Lok Sabha polls. Biding his time, Yeddyurappa had made no secret of his desire to become the state BJP President and got the post recently with no challengers to him with his pan state image and combative style.
With Yeddyurappa already going on the offensive against the Siddaramaiah government after taking over the mantle of presidentship, the new development is expected to raise the political temperature in the state.