Distance/Correspondence

You have not specified the college you are seeking admission to. But I see that you have a Diploma. Unfortunately, Diploma is not considered as a graduation course. The minimum requirement for applying to MBA is, the candidate must have completed his/her Bachelor's degree with 50% of marks from a recognised university.

M.Sc in Zoology from MDU, Rohtak is a regular 2 years course.

First of all, select the university and program you want to apply to. Next, check the admission dates & deadlines. Now, complete the online application & pay the registration fee. You will get intimation for the interview.
Normally, it's easy to get through the interview and you get admission.

Sorry but Mumbai University doesn't offer BMS as a distant learning course. You can do BA/B.Com/B.Sc/MA through distant learning from IDOL.

Please follow the link given below to get the desired details:
https://www.shiksha.com/science/colleges/m-sc-mathematics-colleges-Maharashtra

Yes, you can. No problem, but you have to mention your qualification.

Hi
yes if you are willing to study again then it is a great decision. You should definitely do it. All the best.

Yes LL. M. from correspondence or distance mode is recognised by the bar council of India although they are given a bit low preference as compared to someone who did full-time courses.

Hi Murugesh
Yes, you can apply for Diploma after graduation