online MBA

Yes, distance MBA are valid, but not that worthwhile as compared to full-time MBA. It is recommended to do a full-time MBA. Yes, you can give your exam whilst sitting in your home only and these colleges are well known and reliable. Good luck.

Here is the admission process for this college :
https://www.shiksha.com/college/indian-school-of-business-management-administration-ludhiana-33885/admission
Best wishes.

There are very few colleges which offer online MBA course. There are many private colleges who offer it. Welingkar in Mumbai University offers online MBA which is AICTE approved. Search online MBA colleges on Shiksha platform, you will get online MBA colleges for both Mumbai and Pune University.

There are many institutions which don't have restrictions of entrance exams for an online MBA like WeSchool, NMIMS. You can get in to these B-Schools without any entrance exam. Just pay the fee and you are in but you need to be eligible. Eligibility criteria to pursue MBA or to attempt an entrance exam is minimum 50% in graduation.

Hello!
Welingkar is a much-esteemed brand name and one can better leverage it to get job opportunities in the market. So, I would suggest choosing Welingkar.

If you are doing your course online there will be no class timings, as you will be given an option to study whenever you want and the fee payment mode will be offered in EMI as well. You can check Amazon for more information.

Hello,
Yes, of course. Amity is recognised by UGC and as such different degrees awarded are also recognised. It, therefore, follows that you indeed are eligible to pursue doctoral studies in management in any UGC approved university in India.
Best wishes to you.

Between the two, Symbiosis will be a better option. But I would suggest against pursuing online course unless you have no other option. They are not worth as much as their regular counterparts. If you are seeking just the degree and the institute is not an issue then consider MBA from IGNOU. It will be much easier to pursue.