Tax Deducted At Source (TDS):

Your employer is always bound to deduct tax on salary paid to you which helps the government fills its own coffers along with you getting paid. As you get your salary, the government collects tax on it via (TDS). Since all the TDS deductions are linked to PAN, it must not be hard to pull them together. Every TDS deducted from your PAN is present here and make sure all of this TDS is claimed as a credit against your tax payable.

Form 16:

Always remember to have a Form 16 from your employer because this form will do half the work of your taxes because it has all the information you need to fill regarding your salary income. E-filing portals allow you to upload your Form 16 and then they automatically extract the requisite information from it. It has your total taxable salary and deductions claimed by you.