Dear Rupali, if you are enquiring about CA Foundation exam, here you go. There are 4 papers in this exam and to be qualified its important to pass in all the papers with a minimum aggregate of 40% individually and a total aggregate of 50%. 2 papers are Objective type and 2 papers are Subjective type with negative marking for 2 papers. The subjects are Principles and Practises of Accounting, Business alaw & Business Correspondence and Reporting, Business Mathematics & Logical reasoning and Statistics, Business Economics & Business Commercial and Knowledge. For example, the score should be 40/40/40/40 in every subject and 50% overall. Even if a student gets 50% or above overall but doesnt get 40% in any one subject, he/she doesn't qualify. He/She is considered failed. And in the same manner, even if he/she passes all subjects but scores less than 50% over all, again he/she is considered failed.