hello vinumohan,

you can refer the following topics as important in maths,

• Circles and Family of circles
• Conic sections
• Vectors
• Three Dimensional Geometry
• Application of Derivatives
• Indefinite Integrals
• Definite Integrals
• Differential Equations
• Complex Numbers
• Quadratic Equations
• Sequences and Series

then also go through and solve previous year papers.to know more ,please refer following links by copy and paste it in the address bar of your browser

• https://engineering.careers360.com/articles/keam-answer-key-paper-2-mathematics-code-b1-b2-b3-b4
• https://engineering.careers360.com/articles/keam
• https://engineering.careers360.com/articles/keam-sample-papers

all the best!

I Hope this information will be useful to you.

if you need additional information,let us know to help you.

Thank you!!!:)