"We have asked for clarification on the dates... The date from which the six week period comes into effect. We have also asked for clarification on the 15 degrees," Mahendra said.
Harbhajan was reported during the second Test against Bangladesh in Chittagong from December 17 to 20.
Match Referee Chris Broad and Umpires Aleem Dar and Mark Benson reported the off-spinner on the fourth day after the match ended with India clinching an innngs and 83-run win.
As per ICC regulations, the home board has to appoint a panel of experts to work with the bowler reported to correct his action within a six-week period.
The bowler may continue to play and shall not be reported again in that period. But if he were to be reported again thereafter, he faced a 12-month suspension from all levels of the game.
The 15 degrees mentioned by Mahendra refers to the degree of flexion in a bowler's arm that might be made permissible under the proposed law.
The recommendation has been made by the ICC's Cricket Committee and is yet to be ratified by the Executive Board.