Do I need to attach Form 16 while filling my IT return?
You do not need to attach the physical Form 16 while filling your income tax returns and can keep it as your record. There is however no bar and you can attach the document in case you feel the need to attach it. Better if you retain the original Form 16 or Form 16a for your financial records.
Form 16 is provided by your employer to you for easy filing of taxes. It also acts as proof for the TDS that your employer deducts. You can refer to Form 16 for your Tax Deducted at Source (TDS) and other investment details while you are filing taxes. There is no need to attach the form to your Income Tax Return (ITR). To know more about Form 16, read this blog post - https://blog.bankbazaar.com/form-16-demystified/.