hi,

The  NEST is a compulsory online/computer based test for admission to  five year Integrated MSc programme in Biology, Chemistry, Mathematics and Physics,. The institute which accept nest score are  National Institute of Science Education and Research (NISER), Bhubaneswar and University of Mumbai – Department of Atomic Energy Centre for Excellence in Basic Sciences (UM–DAE CEBS), Mumbai. however integrated course in biology has taught as an interdisciplinary stream at NISER and students from non bio stream are also eligible for admission. in nest exam there would be four section of questions includes PCMB, you have to              opt for any three paper, or you may attempt all the four paper.

hope it would help.