Tax liability on Joining bonus of Salaried employee

I have received a joining bonus in November 2021, with a stipulation that if I resign within 1 year from the date of joining, I will have to return the money. In June 2022 I have resigned, and have returned the joining bonus amount. My form 16 include the joining bonus amount in my gross salary. I have already filed my return for FY 2021-22. What needs to be done? What will be the tax implications?