Hello Aspirant

Rajasthan Board is recognized by the Board of Education in India. So IIIT will also accept your marks from the Rajasthan Board. Any good engineering college demands its candidates to have an aggregate of 60% in their 12th Board with Physics, Chemistry, and Math as their main subjects. Since you have scored 69%, you are eligible to apply for IIIT. But before that, you need to get your improvement marks in hand, so that you can apply

Hope this helps

Yes, IITs will accept your improved Rajasthan Board marks
IITs have specific eligibility criteria, including a minimum percentage in the qualifying exam (usually 75%). If your initial score doesn't meet the criteria, you can definitely give the improvement exam to increase your percentage. Once you get your improved marksheet, you can use it for your IIT application.

If you're aiming for a significant improvement, consider giving improvement exams for all subjects, as some IITs consider the overall percentage.  Your performance in these exams is crucial for securing a seat in IITs. Focus on your preparation for these exams as well.

I hope this information helps you.