B.Sc

Hello,
There is no fee waiver for marks obtained in the qualifying exam. If you scored more than 85% marks, then you can get admission easily in this college or in any college for any course you are interested in. And, you can also get fee waiver in private college.

Eligibility for B.Sc. . Zoology:
The minimum eligibility criterion for a student to take admission in B.Sc. . Zoology is that the candidate must have studied Physics, Chemistry, and Biology in class XII and should have attained a minimum of 50% aggregate in 10+2 examinations. There is no eligibility percentage for Distance/Correspondence mode of education. Regards.

Please refer to the link provided below for details regarding a course in B.Sc Aviation from Thakur College of Science and Commerce. You should be able to download college brochure which contains important dates regarding availability of admission forms from Thakur College of Science and Commerce for B.Sc in aviation. Alternatively, you could also visit college web site for these details. (Website:-http://www.tcsc.org.in)
https://www.shiksha.com/aviation/course/b-sc-in-aviation-thakur-college-of-science-and-commerce-kandivali-east-mumbai-113613

Best colleges in Bangalore to seek a B.Sc. degree are mentioned below:
1) Christ University, Bangalore
2) The Oxford College of Science - [TOCS], Bangalore
3) Jain University - [JU], Bangalore
4) Mount Carmel College - [MCC], Bangalore
5) The National Degree College, Bangalore
6) Jyoti Nivas College - [JNC], Bangalore
7) Nmkrv College for Women, Bangalore
8) Maharani Lakshmi Ammanni College for Women - [MLACW], Bangalore
9) Bangalore City College - [BCC], Bangalore
10) Vivekananda Degree College, Bangalore
Regards.

Please refer to the link provided below for details regarding a course in B.Sc from JSS College of Arts, Commerce and Science (JSSCACS). You should be able to download college brochure which should guide you regarding cut-offs and minimum percentages required to join this course. Alternatively, you can visit college website if cut offs or eligibility to apply for this course have been declared. Regards.
https://www.shiksha.com/science/course/b-sc-jss-college-of-arts-commerce-and-science-jsscacs-mysore-261375

Yes, you will get associate college of DU. It is not the best ones, but surely you can get a seat.

Yes you can go for B.Sc. courses. Diploma is not a Bachelor degree. To complete your graduation you should go for it. If you want to do B.Sc. , you are free to do.