Techno India University

Yes, you can get admission in Diploma in Computer Science after 10th and many colleges provide this course. But the percentage criteria is not fixed, it is different in every college.
There is a university Dr. CVRU in Bilaspur(https://www.cvru.ac.in/) which provides a Diploma in CS and the University does not have any minimum percentage requirements. I have also completed my Diploma in CS with this university. And my experience with the college is so good, the faculty of the college is so good and also helps a lot. In the end, I get a decent placement. You should also visit the college before taking admission anywhere.
Best of luck.

You just need to qualify entrance exam (if any) or even many institutes give direct admission to the students on the basis of their performance in last qualifying exam. You can do biotechnology-related courses from:
University of Hyderabad-School of Life Sciences, University of Mumbai-Institute of Chemical Technology, National Dairy Research Institute
Rajiv Gandhi Center for Biotechnology
School of Allied Medical Sciences, Lovely Professional University
Delhi Technological University-Department of Biotechnology, Indian Institute of Technology-Department of Biochemical Engineering & Biotechnology, Delhi University

The B.Tech course fee at Techno India University is about Rs 85650 per year.

BBALLB is of 5 years. You should complete the entire course to get a valid degree.

the course fees is about 1.5 lakhs for two years including the histel fees. quite cheap compared to some other colleges.

everything is good, however it all depends upon your caliber, hardwork and regularity

This type of course is not available Bachelor of Business Administration or BBA is a 3-year professional undergraduate course in Business Management, the minimum eligibility for which is class 12th from a recognized educational board with minimum score of 50%.The course is divided into six semesters and comprises variants like BMS, BBM and BBS. Thank you.

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Kindly predict your college by using the college predictor tool for better results. Good luck.