Linking aadhar with pan

Good Morning, My wife is a housewife, she don't have any income. When I linked my Aadhar and Pan card, I linked my wife's pan card and aadhar. I wrongly assumed that everyone should link pan card with aadhar. As she don't have any income she is not filing income tax. Could you please let me know will it be a problem if so how to handle this one. Please help. I was working as a software engineer, due to health issue I resigned my job and currently involved in share market - for short term trades/investment. Not doing intraday or F&O. Could you please let me know my tax slabs and exemptions. Thanks, Rajan