Dear Jigyansa, you haven't mentioned the reason why you want to drop your 12th. While no one can force you to take a decision against your will, I sincerely hope you have an alternate path planned and well thought. If you discontinue your 12th, your highest qualification will remain 10th standard and you can pursue a Diploma course and then take lateral entry into a B.tech course. Say now you join any Diploma, it takes you through a detour and it will take 3-4 years before you join a Bachelor's degree. On the other hand if you complete your 12th standard this year, you can join a Bachelor's degree this year so that you neednt wait for 3-4 years. This is just an option that you have. But if you want to drop your 12th, you can.