How to make our concept strong and can't foreget it

dear first of all try to understand theroticaly and after then numerically...I means do appropriate numerical on those topics...it Will be long lasting and get conceptually... Best...

after learning any new concept,try to solve some numericals based on that particular problem and see some examples related to that concept. It is the best way to make your concept ...

in your study schedule give proper time for revision because we can study well but without revision it's all in vain.

prepare short notes and revise that time to time.

ok mam,,,Thanks