Science

Hi Anusha,
Refer the below website to know more about KVPY exam:
www.kvpy.iisc.ernet.in/
My friend attempted the KVPY SX stream with the subjects Physics, Chemistry, and Biology. The books she referred were, luckily, extremely helpful.
For physics, do not ignore Concepts of Physics by Dr H C Verma. Two questions in the first part of the 2014 question paper were modified questions from this book. Also, Principles of Physics by Resnick and Halliday helps a lot.
For Chemistry, do not refer any book other than the NCERT books. Chemistry is the simplest section in KVPY. However, do refer A new pattern textbook of Inorganic Chemistry for JEE by Dr O P Tandon for the chapter Coordination Compounds. Especially for Crystal Field Splitting Energy.
For Biology, the good part is that many large, time-consuming lessons can be skipped. Analyse the previous years' question papers to get an idea. Then study the NCERT books, NCERT exemplar problems. Now you're 50% ready. After you've finished the syllabus this way, read Biological Science by Taylor, Green, and Stout, Cambridge University Press publication.
She followed these steps and managed to get a relatively high score ( &get; 75 ) in the aptitude test.
I hope you find this answer helpful.