it does mean don't start prepration haphazardly..Stay organised,delegation,get to work on time & leave on time..set your goals & task management..once you ve decided cling to it..smart work also required while u sit in exam as what questions you are going to attempt in what manner..apart from that while prepration don't neglect the past trends that help us in what ways a question may be asked...

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Your feet will bring you,Where your heart is!!