Dear Arun Ji,
- You are required to file two ITR;s for for the F.Y. 2018-19. As your mother passed away in March 2019 and you inherited mutual funds and fixed deposits, which means your mother was having income in the F.Y. 2018-19. You should file her ITR as a legal heir for the F.Y. 2018-19. Please check her Form 26AS for the F.Y. 2018-19 for any TDS deduction. To file her ITR , you need to obtain surviving certificate.
- As your mother passed away in March 2019, inheritance happens by default unless there is a registered will. You should show such capital receipts in your ITR for the F.Y. 2018-19. If such assets transferred in your name in the F.Y. 2019-20 then you can file the ITR in AY 2020-21.
- As you are NRI and OCI card holder there is no need of Aadhaar card.
- Sale of paintings will be treated as capital gain. You need to share details of cost of paintings.
Thanks