The Welsh midfielder joined the Eagles from Scottish giants Celtic in the winter and his influence has helped the south London club move seven points clear of the drop zone, delighting Pulis.
"I thought Ledley was fantastic," Pulis told reporters.
"He has brought a little bit of class, he has got a fantastic attitude, his work-rate suits what I want as a manager and his ability is absolutely first class."
Since arriving at Selhurst Park, Ledley has made eight Premier League starts for two goals and one assist.
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