Hi,

Based on the KVPY website, Agriculture is not mentioned there. So, you can directly mail the KVPY officials to confirm it. You can do basic sciences to get KVPY fellowship. Those subjects are,

1. Chemistry
2. Physics
3. Mathematics
4. Statistics
5. Biochemistry
6. Microbiology
7. Cell biology
8. Ecology
9. Molecular biology
10. Botany
11. Zoology
12. Physiology
13. Biotechnology
14. Neurosciences
15. Bioinformatics
16. Marine biology
17. Geology
18. Human biology
19. Genetics
20. Biomedical sciences
21. Applied physics
22. Geophysics
23. Material science
24. Environmental science

You can choose anyone of the subject based on your interest. Related to Agriculture, you can study ecology or Environmental science or Botany. Biotechnology and genetics also provide knowledge about advanced techniques in agriculture. If you gat a seat in Agriculture counseling, take it and do Agriculture. you can get more experience and you can apply for other fellowships also.

Hope it helps.