1.Be pratical and always study in group of 2 to 4 student.
2 In May attempt is summer time so also little aware about your diet. Your diet should contain liquid
3 Discuss with other student who is part of your group
4 Do not attemot 1st question of any paper in the starting and do not try to solve 100% paper. Always solve question with proper working notes and full. tiem allotment is important but also correctness and way of solving is important