Science

Level of maths questions asked in the NATA exam is mostly at HSC level. Please find below topics covered in the NATA syllabus (maths Section) for 2018 which should give you a brief idea about the level of maths required for the NATA entrance exam.
Topics covered:
1) Algebra
2) Logarithms
3) Matrices
4) Trigonometry
5) Coordinate geometry
6) Dimensional Co-ordinate geometry
7) Theory of Calculus
8) Application of Calculus
9) Permutation and combination
10) Statistics and Probability
Most of these topics are covered in class 11 and class 12 studies or HSC level.

With M.Sc and B.Ed, you can go for teaching. You can also continue your studies as M.Phil or in research. In some private colleges, you can try for lecturership as well.

Some of the best colleges in Ahmadabad where you can pursue an integrated B.Sc+M.Sc (IT) course are as follows:
1) M G Science Institute
2) St. Xavier's College Navrangpura
3) K. Shashtri Government Science College
4) Gujarat Arts and Science College
5) School of Computer Studies
6) Division of Biological & Life Sciences, Ahmedabad

Some popular PG entrance exams for agriculture graduates are as follows:
National Level Exams:
1) ICAR AIEEA 2018
State Level Exams:
1) OUAT (Orissa)
2) TS EAMCET 2018 (Telangana)
3) Andhra Pradesh EAMCET 2018 (Andhra Pradesh)
4) KCET 2018 (Karnataka)
University Level Exams:
1) LPU NEST 2018 (Lovely Professional University)
2) BVP CET 2018 (Bharti Vidyapeeth Deemed University)
3) AMU 2018 (Aligarh Muslim University)
4) Allahabad University 2018

Some of the top colleges offering M.Sc courses in popular courses like chemistry are mentioned at the link provided below. Given below is the list of top 10 B.Sc/ M.Sc colleges in India in 2016 basis ranking released by India Today. Towards the end, we have also listed the top 50 B.Sc/ M.Sc colleges in India in 2016 as mentioned in India Today rankings.
https://www.shiksha.com/science/articles/top-10-bsc-msc-colleges-in-india-blogId-13473