The 31-year old Subrayen has 14 days to undergo an independent assessment of his bowling action at an ICC-accredited testing laboratory.
Rising off-spinner R Ashwin today replaced out-of-form senior tweaker Harbhajan Singh in the top bracket of BCCI's list of central retainership contracts, while struggling pacer Ishant Sharma was also demoted from Grade A to B.
Twenty million Sri Lankans will be scrutinising Muttiah Muralitharan's medical bulletins for the next few days after the world's most prolific bowler was stricken by a hamstring problem during his team's victory over New Zealand on Friday.