Science

Refer the following:
https://www.shiksha.com/college/iiser-kolkata-indian-institute-of-science-education-research-nadia-59107/cutoff
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Refer the following:
https://www.shiksha.com/college/jd-institute-of-fashion-technology-goa-panaji-61831/course-b-sc-in-interior-design-437475
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Refer the following:
https://www.shiksha.com/college/nammazhvar-college-of-agriculture-and-technology-tamil-nadu-other-113169/course-b-sc-in-agriculture-613049
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Refer the following:
https://www.shiksha.com/college/shevaroys-college-of-arts-and-science-salem-75889/course-b-sc-in-psychology-682599
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M.Sc Microbiology is a two-year master degree course. College/institutes offer admission to postgraduate course in Microbiolog.
refer link: https://www.shiksha.com/science/m-sc-microbiology-chp

Refer link: https://www.shiksha.com/college/psg-college-of-arts-and-science-psgcas-coimbatore-1855/courses/bsc-bc

Refer link: https://www.shiksha.com/college/udupi-dhanvantari-college-of-nursing-91465/courses/bsc-bc

MS in Obstetrics and Gynaecology at Medical College, Kolkata such as cutoff, placements, fees, admission, ranking & eligibility.
refer link: https://www.shiksha.com/college/medical-college-college-street-kolkata-48335/course-ms-in-obstetrtics-and-gynaecology-398081

If you have not taken Maths in 12th, then will not be eligible for Engineering and Technology courses like B.E. / B.Tech. But can be eligible for Medical related courses through NEET if taken Physics Chemistry and Biology in 11&12th. The Non Math group have the following other options.
1. UCEED exam

Yes you can do B.Tech without M.Sc. For any engineering colleges in India you need to be 12th pass or have completed higher secondary education. It's definitely fine to do B.Tech as it's most demanding course and all time favourite of many.