Dear student,

IISERexam comprises of four sections with 15 questions in each section amounting to 60 questions in total.

You will get 3 marks for a correct answer while -1 for a wrong one.

The four sections of the exam are:

 Physics

Chemistry

Biology

Maths

No matter whichever stream(PCMB/PCMCS) you had taken in +2 , you need to attend all the sections in order to score higher marks; although no section is compulsory.

Hope this helps!