The issue arises only when the employer adds performance allowance, commission, incentives, etc., as part of the gross salary for deciding whether they are paying the statutory minimum wages. For the purpose of PF contribution, these components of salary could be excluded. After all, when the employer can restrict payment of PF on a salary of Rs 15,000, what is the relevance of the gross salary being inflated with commission, incentives, etc.? But concerning employees covered by ESI, these elements will be treated as part of wages provided these components are paid every month.