Botany

Main Subjects:
Agronomy 1 crop production.
Agronomy 2 field crops.
Entomology study about insects.
Plant pathology plant diseases.
Soil science soil studies,manures,fertilisers.
Genetics and plant breeding physiology and genetic engineering and others.
Agricultural Economics.
Agriculture Extension.

Hi,
Kindly check this list for colleges of M.Sc in botany.
https://www.shiksha.com/science/colleges/m-sc-botany-colleges-india
You need to consult with the college authorities specifically for admission process as it will be really difficult to get into colleges without any entrance especially in top colleges.

After Bachelor Degree, you can go for Masters & PhD
But, all depends on your desire. You can also opt for Professor or a taxonomist or even research scholar.

After B.Sc Botany, you can apply for matching jobs or can go for higher studies. M.Sc course in Botany or related area will improve the career prospect of the candidate in future. Those who prefer a career after B.Sc Botany can search for jobs in public and private sector. They can get in to the role of taxonomist, environmental consultants, etc. Farming consultant, Plant pathologist, etc. are other job profiles suited to these candidates.