Your basic pay is the amount of your basic salary, less any housing rent allowances, personal pay, statutory bonus, and conveyance.
The corporation would subtract your provident fund, income tax, and professional tax from the entire sum after deducting your provident fund, income tax, and professional tax from the whole sum.
Then you get your take-home income or net wage.
Basic pay is a standard amount of remuneration before all of the above-mentioned incentives and allowances.