Indian off-spinner and Test prospect Mohnish Parmar, who has a similar bowling style to Sri Lankan spinning great Muttiah Muralitharan, must rectify his action to correct flaws, India's cricket board said.
Parmar, 20, emerged as the most successful in Indian first-class cricket this season with a tally of 52 wickets from just 11 matches.
The Board of Control for Cricket in India sent him to Australia last month to get his action reviewed and based on the report has directed him to undergo rehabilitation before returning to competitive cricket.
"I'll have to correct my action, else I won't be allowed to bowl," the player told the Times of India on Wednesday.
Employing a similar bowling action to the supple-wristed Muralitharan, the world's highest wicket-taker who has courted controversy throughout his career, helped Parmar initially.
He imparts a lot of spin on the ball and bowls the doosra effectively, foxing Australia Test opener Simon Katich during last year's 'A' series game in Bangalore.
"One tends to put more revolution on the ball with an action like that, you also derive better bounce," former Test batsman Aunshuman Gaekwad, who was Parmar's state coach, told Reuters.
The legality of Muralitharan's action was questioned until it was put down to hyper-extention of his elbow caused by a physical deformity and he was ruled not to be violating the rules.
"He (Parmar) always bowled with that action and has been very, very effective," Gujarat state association official Hitesh Patel said.