The syllabus of BHU Maths has following topics:

• Algebra
• Calculus
• Equations
• Geometry and more

You can check BHU Maths syllabus here in detail (Page 130)

For preparation NCERT is recommended at first.

• Start with Maths, Chemistry and Physics NCERT books.
• Go through previous year papers which you can get officially as well
• You will not require external books if you go through NCERT books thoroughly.
• You can appear for tests to analyse your performance accordingly.
• Don't stick on one question for long. Skip but do not waste time for long on one.

Focus on your basic concepts and you will clear the exam.

All the best.

Good Luck.