Trending @Accenture; Can the notice period be shrunk in Accenture?

Hey guys , need one help. Is there any HR from Accenture who can tell if the 3 months notice period can be reduced or if there are any ways to cancel our resignation once submitted. TLDR; Planning to go for masters and the curriculum at college starts in August. But the doubt is admission is not yet confirmed. So I'm not planning to resign before I get confirmation. Any HR from Accenture who can guide on this.Thanks in advance.