Mendis's two wickets, which included Sachin Tendulkar, took his series total to 25 and broke Alec Bedser's record for the most wickets in a debut series.
"It is a phenomenal achievement. He came in when Murali (Muttiah Muralitharan) needed support and he rose to the occasion well."
"He has gone beyond our expectations and the important thing for him is to keep learning." said Sangakkara speaking to BBC Sport.