Hello Bibhakar,

See For 12th class Board exams there is always a set pattern of question that is generally asked in any paper.For the Engg. Graphics paper there is set pattern of question which is asked.I suggest that you should first learn the concepts regarding your syllabus then do the last 10 year papers of this subject.This would ensure 90+ marks easily in your boards.

All the best

Shubham Goel(DTU)