Hi Nivitha 

Bsc agriculture is a 4 year undergraduate bachelor degree program. 

This program is to train students in Agriculture Science, land surveying, soil science, basis of biotechnology and to improve agricultural productivity. 

Eligibility criteria for this course is: you must pass class 12 in Science stream with physics, chemistry and biology from recognised board.

Also you must have appeared in relevant entrance examination. 

Some top colleges in Tamil nadu are:

1. Tamil Nadu Agricultural University (TNAU), Coimbatore

2. Vellore institute of technology (vit University), Vellore

3. Annamalai University, Chidambaram

4. SRM University kattankulathur, Chennai

5. Anbil Dharmalingam agricultural college and research institute, thiruchirapalli

6. Gandhigram Rural institute, Dindigul

7. Kumarguru institute of Agriculture, erode

8. Agricultural college and research institute, Madurai

9. Karunya Institute of Technology and sciences, Coimbatore

All The Best!!