In most cases, winning a gold medal in a private woodball national championship won't grant you extra marks for your 10th standard exams in Maharashtra.

The Maharashtra State Board of Secondary and Higher Secondary Education (MSBSHSE) focuses on academic performance measured through the board exams for awarding marks. Achievements in extracurricular activities, even at the national level, typically don't factor into the final marks.

Extracurricular activities that grant extra marks are usually those recognized and officially listed by the MSBSHSE.  These might include participation in national or international events organized by government bodies or affiliated sports associations.

Your school might have a system for recognizing and appreciating student achievements in extracurricular activities, even if they don't translate into marks. This could involve a certificate, trophy presentation, or mention in the school newsletter.

Some private institutions or trusts might offer scholarships to students who excel in specific sports, including woodball. Research potential scholarship opportunities that recognize achievements in woodball, even from private tournaments.

I hope it helps!