It is the second time the 36-year-old, who has taken 174 wickets in 34 tests at an average of 27.79, has faced question marks about his bowling after he was reported for a suspect action in 2009 but later cleared by the ICC.
The governing body said Ajmal would undergo testing within 21 days but would be allowed to continue bowling during the review period.
The spinner took 5-166 in Sri Lanka's first innings in the Galle test but did not take enjoy success in the second as the hosts claimed a seven-wicket win on Sunday.
The second and final test gets underway in Colombo on Thursday before three one-day internationals later this month.
(Reporting by Patrick Johnston; Editing by John O'Brien)
Share
