Hi there,

Most probably the Jee mains September exams results would be declared by 10th September or before that,

As on 27 Jee advance is scheduled hence between 11-15 Sepetember there would be form filling process then after the admit card will be released a week prior to the Jee advance, hence by 10 Sepetember you can expect your Jee main results.

I hope this help