I want to do B.Tech biotechnology. So is it compulsory to have maths in main subjects because I am 12th pass with PCB?

The B.Sc. Environment course is generally less competitive than courses like Computer Science or Biotechnology, so the chances may improve. However, admission cannot be guaranteed because merit lists change every year based on student applications and available seats.

With 69.33% in 12th Science, get

Yes, even a decrease of one mark will be implemented. CBSE 12th re-evaluation can increase or decrease in marks.

CBSE Class 12 re-evaluation is conducted in following way.

• Candidates must refer to the marking scheme and question paper.
• Applications must specify the questions challenged with reasoning
• Results of re-evaluation (increase or decrease in marks) are final and binding.

Only candidates who have applied for scanned copies of their answer books can
apply for CBSE re-evaluation.

The process to check CBSE 12th evaluation issues is given below.

• Keeр a copy of question paper
• Keep a copy of the marking scheme
• Compare your reply with marking scheme
• Raise with CBSE any issue related to revaluation