Concise answers get you more marks and makes paper checkers life easy. Never resort to just filling pages.
Time is precious. Always track the time you spend in attempting questions. Rule of thumb is: 20 to 25 mins per question
If you know answer of a question, attempt it first. Once done with all such questions, move to others in which you are not that confident.
Quote Sections and Provisions only when you are 100% sure that it's applicable and relevant. Never quote wrong sections and provisions.