Showering his praise on Ravichandran Ashwin, bowling coach Paras Mhambrey rated Indian star spinner as one of the greatest match-winners of the country and was also in awe of young Yashasvi Jaiswal's maturity in his brilliant Test debut.

Ashwin, the world's top-ranked bowler, recorded his best overseas Test figures of 12 for 131 (5/60 and 7/71) to decimate a hapless West Indies and hand India a thumping innings and 141-run victory inside three days in the series opener here on Friday.