I have already said that there is no official breakup for salary. You can keep all the 1,50,000 as his basic salary or start with a base amount as per the Minimum Wages notification applicable to your establishment, as applicable to the category of the employee, as a base and build it up with other allowances depending upon the compensation policy of the organization. It is a process that involves various factors. You should make it clear what all are the perquisites, cashless benefits, performance-linked incentives, and other variable allowances which depend on certain conditions, like the generation of business, profitability of the organization, etc., included in this 1.5 lakhs and take it out first. It is not just a matter of formulae but compensation management will take the entire functions, the monetary valuations of various functions.
But you can take one thing as a base, and that is notified minimum wages. Whatever salary you fix should be over and above the notified wages. In respect of highly paid employees/managers also, the minimum wages will be available, and that can be a base for the fixation. Along with this, you should also consider the demand of the employee. Experienced employees will be more concerned about their salary and its bifurcation. That is to say, the employee concerned should accept the bifurcation that you give. Dispute will certainly arise if you show a lower basic salary because the statutory payments like gratuity at the time of discharge would normally be based on basic salary only even though it should be on total emoluments as per law. But if you are ready to calculate gratuity on the basis of the total salary, then there would be no issue for the employee. Obviously, since it is a part of CTC for many employers, you will get a higher CTC also.