The human resource portal of the employee will have an option to change the HRA value in these salaries, and the value must be calculated based on the formulae, and the remaining if given excess by the employer will be added as extra allowance in their salary slip. The total amount will be the same in salary, but the allowance will differ as per your IT filing requirements, and in any case, the HRA must be in values that are defined and does agree with the condition of the salary structure which will not make changes in these basic component values.