What is Form 67 and how to file it on Income Tax Portal?

Hi , I have filed return for fy-24-25 but missed to declare My USA salary earning for April,may and June- 3 month of 2024, I was paid in india from July 2024. Now I got ti knew that I need to declare my foreign income , so can I file form 67 first and then file ITR-U ,and claim foreign tax credit?