Hello Devil

Yes, you need to submit the project once again if you wish to appear for ISC improvement examination. If the candidate wish to appear for ISC examination in a particular subject, then, he/ she should appear for both theory and practical examinations of that particular subject. You can appear for improvement exams in all/ some subjects in which you are interested. Candidates who wish to appear for improvement exam need to give a written application to the Principal of the School, who registers you online for the ISC Improvement Examination.

Regards