B.Sc

Yes IHM lko is best college for B.Sc.

Please read the overview for detailed information about the same. https://www.shiksha.com/university/chennai-mathematical-institute/cmi-entrance-exam.

You don't require mathematics as a main subject in order to pursue B.Sc in Economics. But, for B.Sc in Mathematics and Statistics you need Mathematics as a main subject in 10+2.

Hi Aman,
Please refer the link below:
https://www.shiksha.com/hospitality-travel/hotel-hospitality-management/course/b-sc-in-hospitality-and-hotel-administration-guru-nanak-institute-of-hotel-management-sodepur-kolkata-148283

Yes, you can pursue this course, but you need to have English as a mandatory subject.

Hi,
Please refer the link below:
https://www.shiksha.com/science/course/b-sc-in-physics-jadavpur-university-jadavpur-kolkata-273123

To apply for B.Sc in genetics, you need to check the basic eligibility requirement for the same. The basic criterion of eligibility needed to be MET for admission to the course is a Higher Secondary (10+2) or equivalent qualification from a recognized educational Board, with Physics, Chemistry and Biology as main subjects and a minimum aggregate score of 50% marks. If you fulfill the eligibility, you can apply for the same.

It totally depends on your interest. If you want to get into a research, education, food industry, etc. This course may be a good option. Apart from this, B.Sc graduates have equal opportunities at par with other stream graduates/professionals for UPSC and other competitive exams.