Urgent : profession tax query

On which amount Profession Tax should be deducted? We are private limited co. situated in MUMBAI paying PT of employees. One of our employee is having basic salary of Rs.12000 and he gets monthly commission of abt 2000 and conveyance of Rs.1300 then on how much Profession Tax we should deduct? If in any month he will get salary less than Rs.10000 due to his absense in that month then also should we deduct Rs.200 as PT.?