Yes, there are various scholarship scheme's for 12th class high scorers like:
1. Centre Sector Scholarship for class 12 pass students
2. Inspire scholarship
3. SJVN Silver Jublie Scholarship Scheme
4. Indian Oil Academic Scholarship
5. GP Birla Scholarship
6. Sahu Jain Trust Loan Scholarship
7. National Scholarship Test
You can visit the official sites of all these scholarship schemes to know about them in detail.

• College Admission Scholarship Admission (CASA) is a popularscholarship for 12th pass studentsthat can help maximize the benefits of quality higher education for the candidate. It can get you a 100% tuition fee waiver. The CASA application process usually starts in the month of June and there is no application fee for this scholarship.
• Schindler Igniting Minds Scholarship is a great opportunity for students belonging to rural areas and backward classes. The scholarship is specifically for class 12th pass students who are planning to pursue diploma such as civil, electronics, telecommunication, mechanical and electronics.
• PM Narendra modi scholarship offers 5500 scholarships to student who have cleared 12 th with 75%
• INSPIRE Scholarship is also known as Scholarship for Higher Education (SHE). This scholarship is a Government of India initiative and is offered to students who fall in the top 1% rank in 12th board exams

And there are many more such scholarships available out there .