Distance/Correspondence M.Sc

Please refer to the link provided below for top colleges which offer distance courses in M.Sc biotechnology. Download their brochure if you need further details regarding admissions, eligibility criteria, placement records, fee structures etc.
https://www.shiksha.com/science/colleges/distance-correspondence-m-sc-colleges-india

M.Sc (Information Technology): Eligibility
Candidates can be eligible for admission if they fulfill any of the following conditions:
Bachelors degree in Information Technology / Computer Science / Physics / Stats / Electronics or equivalent examination with at least 45% marks in aggregate from a recognized university.
B.Tech / BE degree holders in Computer Science / Informational Technology are also eligible for M.Sc IT course.
Aggregate percentage required in graduation or equivalent may vary from college to college.

You can check for an answer to your question directly via the link I have provided below. Download the college brochure which contains important information regarding admissions and eligibility:
https://www.shiksha.com/college/directorate-of-distance-education-kurukshetra-university-23472

Please refer to the link provided below for details regarding eligibility criteria and admission details for a distance M.Sc. in EduKart.com.
https://www.shiksha.com/science/course/distance-m-sc-edukart-com-agra-234877

The decision taken by DEC was communicated to UPRTOU vice-chancellor Prof AK Bakshi, who said a student cannot enrol for two-degree courses at the same time. However, he added that students can do the same through distance or combination of distance and regular modes from the same or different institution.

Well, the validity of your degree certificates will depend on the institute from where you have completed your certifications from, and whether the institutes are UGC or AICTE approved. You will be able to get this information from your institute or from the official site of your college.