Dear Aspirant

Hope you are doing well

First of all check syllabus of it and then weightage wise categories them just like lens and please try every derivation because it helps you a lot

If you are study good in 11 th class physics then there is a plus point for you because  derivation of electrostatics and gravitational are approx same

And

there is various online platform which help you to study

If you need more info visit link https://school.careers360.com/articles/maharashtra-hsc-syllabus