In Section VI-A, 80D (B), which is "Medical Expenditure", there's a max deduction of 30000 for "Parents (super senior citizen)". I don't know if this was present last year, but this is the first time I noticed it and I think I can avail it since my mother is 81 years old and qualifies as a super senior citizen.
Including all the doctor visits, medicines, etc, the annual expenses for my mom would be above 30000, and almost all of these have been paid using credit card. However, since I wasn't aware of this deduction, I wasn't diligent in keeping all the receipts. I am wondering what kind of proofs are needed if I get audited, and whether I should try to get this deduction given that I don't have all the receipts.