How to claim 80DDB while filling of returns?

-I want to claim rebate u/s 80DDB while filling my IT returns(Chronic renal failure for my father) in India. I have my form 16 and form 10-I approved by the medical board.

Please let me know:

1. How to claim the rebate while filling returns. Should I enter in the ITR1 the amount that is聽mentioned in the聽Form 16 or the recalculated one after deduction of the claim?

2. Can I do it via efilling or it can be done only manually?

3. Do I need to attach the certificate (original/copy?) along with the ITR1/acknowledgement for verfication?

4. What other documents are required?

Kindly provide info in this regard. Thanks1- There are colomn for deductions u/s 80DDB under chapter VI A in Form ITR 1, you need to prepare a computation sheet seperate to Form 16.

2- It is your choice to e file or manual file. However proceesing is faster in case of E Filing.

3- Form at present are annexure less form hence no attachment should be attached to ITR

4- No other documents are required to attached.