Dear aspirant

I personally prefer JEE Mains to be conducted in online mode (as it is being conducted now) because there are a lot of advantages like :

1. One can always change a marked answer in online mode. This freedom is not there in offline mode.
2. Information like number of questions answered, number of questions unanswered, answers marked for review is available on the screen which helps to keep a track on the complete question paper.
3. Personally as a student, I would always have to keep some extra time to fill the bubbles of OMR sheet. On the other hand, in online mode you can do it with one click only.
4. The result of the examination conducted in online mode is declared within few days only while in case of offline exam, it takes time.