how can iget passing marks in JEE ?

first of all , keep in mind that jee will test only your basic concepts..keeping that in mind you first revise all concepts and try to remember all formulae..if there is time left,try deriving them...dont solve any other tough exams which may discourage you and solve past jee papers like a test daily....with this your confidence will be boosted and you will not only pass but also get good result.

priyanka tata