One of my friend's daughter who was working in India for sometime and filing her return as Resident had gone abroad for studies since December 2019. For AY 21-22 (FY 20-21) she is not in India for more than 182 days in the previous year. As she has gone for studies, she may not be earning there. But if Non-Resident category is selected, it is asking for Tax Identification number and no such number is given to her.
How to file the return and in what capacity Resident / Non-Resident