MBA/PGDM

For MBA, you should take GMAT and for B.Tech, you should take GRE.
But some universities offer admission on the basis of IELTS.

Global Access School for Continuing Education (NGA-SCE)
Institute of Management Technology, Centre for Distance Learning
Symbiosis Center for Distance Learning

For PGDM especially in marketing, Jaipuria Noida is far better than GL Bajaj.
And, ROI rate is also low of GL Bajaj.
And, if I talk about alumni, Placement and academics then definitely JIM is winner.
So, if you want to pursue PGDM at mid-range colleges, then my recommendation is JIM, because JIM has given satisfactory result in past few year.

Hello Albert,
Only a few colleges offer part-time courses in MBA ( master of business administration ) in Trivandrum. For those, you may refer:
https://www.shiksha.com/mba/colleges/part-time-mba-colleges-thiruvananthapuram

Hello Gaurav,
Yes, you can pursue MBA (Master of Business Administration) abroad after graduation from India.
The first and foremost eligibility requirement is to have completed a basic Bachelors level graduation degree. This could be an engineering degree (B.E, B.Tech), B.Sc, B.Com, BA. or in any other discipline. A Masters or doctoral (Ph.D) degree is also fine.
The primary evidence that you'll submit to prove your credentials are your academic transcripts. These include semester-wise marks for each subject that was covered in your degree.

Hello Vaibhav,
The IIMs are always the best for MBA. You need to clear CAT exam for that.
You may also refer:
https://www.shiksha.com/mba/ranking/top-mba-colleges-in-india/2-2-0-0-0

Hello Akshai,
You may refer the link below for the list of colleges for MBA in Kochi:
https://www.shiksha.com/mba/colleges/mba-colleges-kochi
All the best!

Since, your 10th and 12th scores are lower than 60%, so it may be hard for you to sit for the placements. Though there are many companies which don't consider your 12th, 10th scores.

In some companies education gap matters but if you are pursuing MBA or PGDM from reputed institute or B-School then it will not affect your placement. Normally most of the companies accept year gaps.