Sudharsan has so far played in only eight first-class matches, scoring 598 runs at an average of 42.71, including two hundreds and a half-century, with a top score of 179
The 36-year-old played at the Kia Oval for three seasons taking 136 wickets in all formats. He played a key role in Surrey's 2018 County Championship victory, taking 59 wickets at 14.32 as Surrey won their first Championship since 2002.