Your employer provides you with Form-16, which serves as a certificate of the total TDS deducted from your salary. Form-16 contains information about TDS deducted as well as salary, allowances, and deductions. The specifics of the deductions mentioned, however, are subject to the proof of deductions submitted by you to your employer. As a result, the actual computation may differ from the computation described in Form-16. It is given at the end of the year to assist you in filing your income tax return. Remember that Form-16 is not a substitute for the Income Tax Return. Even if the correct TDS has been deducted as per Form—16, filing an income tax return is required.