Geography

Yes, you can easily get admission for B.Sc in agriculture. If you want to pursue your B.Sc from North India then I would like to recommend you some best B.Sc agriculture colleges according to my perception.
Below is the list:
1. IMS-Noida
2. HT Campus, Dehradun
3. Tula's Institute, Dehradun (best college)
4. Manav Rachna International Institute for Research & Studies, Faridabad
5. Sharda University, Greater Noida.

Hi Shrayashi, The minimal eligibility for M.Sc. Geography is to pass with 50% aggregate marks in Bachelor's Degree (any discipline) or equivalent. Percentage may vary in some universities. I can enlist some of the universities, like Lovely Professional University, Punjab University etc.

You will get admission on this score and also you will get hostel. Be sure.

Best books are
-Arihant's UGC NET Geography (Rs. 520)
-Indian and World Geography (Rs. 374)
You can get them on discount or at cheap prices also.

I am not sure if the change of the course will be done after the 2nd year. Request you to contact the faculty or admission office to understand the process of changing the course.

After successful completion of the course, a candidate can get job as forest manager in economic and agricultural fields. Archaeology is also an exciting field in which a candidate can make his/her career. Government institutional offer a good job in the field of intelligence work and remote sensing interpretation. Many companies hire geography experts to work in waste disposals systems. Candidate can also go for civil services exams or choose a teaching profession after the course. Some of the major recruiters that hire geography majors are:
ISRO
NRSC
NATMO
Survey of India
Tata Chemicals Ltd. Bayer
Eureka Forbes.