Exam

To know the details of VITEEE entrance examination you can refer to given link:
https://www.shiksha.com/university/vit-university-Vellore/exams/viteee
To know the previous years cut off and marks to score specific rank visit the following link :
https://www.google.co.in/amp/allindiaroundup.com/india/vi

Hiii Maithili, I am sharing some links with you for IIT-JEE and NEET preparation coaching centres in Goa. You can refer them to locate the convenient as well as good institute for your preparation. For IIT-JEE coaching classes :
https://yellowpages.webindia123.com/d-py/Goa/Goa/IIT-Coaching-Classes-21

They will send you an email with the link. There, you will get to know your percentile.

You do not meet the eligibility criteria of 75% marks or above. Accepted test scores are CAT XAT MAT and CMAT.

You have some limited chances. Yet also, you have lots of option. Firstly, search on NET some of government colleges locally. Then, give the exam for private universities for B.Tech lateral entry. You will easily get the admission in B.Tech lateral entry, but you should be careful with the ranks and

It depends upon the category. For marine engineering, here are the minimum rank you should get:
For general: - 1700-2000
For OBC: - 2000-3000
FOR SC:-. 3000-3200
All above information is not confirmed, and it is changes every year depends upon cutoff. So, I advise you to just search on your own once.

Sorry to say, but PUMBA won't call below 85 percentile.