What is the exam pattern for kvpy sb stream I heard we can opt for 3 subject for section 1 and 2 subject in section 2 ?is this correct?

dear injila 
in SB stream ,kvpy exam covers all the corresponding science syllabus of first year under graduates , hence , the aspirants will be tested for the kvpy syllabus in P, C, M for first year B.sc / B.S / AS applicable . 
and yes , you are right with the info . 
regards