Thank you for reaching out with your question! First and foremost, congratulations on your academic achievements.

In the context of JEE Main and JoSAA (Joint Seat Allocation Authority) admissions, the criteria for eligibility, particularly the percentage requirement, is crucial. JoSAA considers the total percentage obtained in the qualifying examination, which, in your case, is the Maharashtra board.

If you've secured 76.3% out of 600 marks, this is the overall percentage that JoSAA is likely to consider. The percentage derived from PCM (Physics, Chemistry, Mathematics), English, and one other subject out of 500 marks is 74.7%. However, JoSAA typically looks at the total percentage obtained in the board exams, which includes all subjects.

For admission to NITs (National Institutes of Technology), IITs (Indian Institutes of Technology), and GFTIs (Government Funded Technical Institutes), the general category candidates must have at least 75% of their total marks to meet the JoSAA 75% requirement in 2024. Since your overall percentage is 76.3%, you should meet this criterion.

It's essential to double-check the specific admission guidelines and cutoffs released by JoSAA or the respective authorities for the most accurate and up-to-date information. Additionally, keep an eye on any announcements or updates regarding the admission process.

Feel free to ask if you have any more questions or need further clarification. Thanks again for reaching out, and best of luck with your admissions!