Diploma

Hello, below link will help you:-
https://www.shiksha.com/b-tech/course/b-tech-lateral-entry-guru-gobind-singh-indraprastha-university-dwarka-delhi-273913.
All the best.
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Yes, you can join the course with ECEAT exam.

You should apply for BBA in event management.
S.S Dempo College, Goa will provide best course in event management.

Dear Semu,
Yes, there are 1 year Diploma courses in Australia for UG students provided by polytechnics there, however you will not get a post study work visa as the rule is that you should do a minimum 2 year course, so suggest you enroll for a 2 year Diploma. However if your plan is to just study and comeback then a 1 year Diploma is fine. Hope this answers your question; also please enroll in some reputed college or Polytechnic so that your chances of visa approval are higher. All the best.

Diploma in Nautical Science is a one year full time Diploma course. To pursue this course, you need to clear class 12th with Mathematics, Physics, and Chemistry or an equivalent examination with minimum 55% from a recognized board. To see the colleges offering this course, please click here- https://www.shiksha.com/science/colleges/nautical-science-colleges-india.

The class timings vary college-to-college. Please specify which college are you desiring for, so I can guide you appropriately.

Yes, according to me NIEM will be a great option, because it gives you opportunities to work with big events like Filmfare awards, India's got talent, big boss etc. It gives placement also. If you want to get more details : https://www.shiksha.com/hospitality-travel/event-management/course/diploma-in-event-management-national-institute-of-event-management-pune-fergusson-college-road-96670.

Then I think that the best option for you to understand what are you made to do, first complete your 12 from artside then think about Diploma. you can go for BSC, BCA, law, hotel management, fashion designing.there are many options out there you only have to choose best course for you.

Hey buddy,
National Law School of India University (NLSIU), Bangalore offers law courses to aspirants at the undergraduate (UG), postgraduate (PG) and doctorate (PhD) level. Candidates can also pursue law programmes in the distance mode from NLSIU.
for further information do visit this link
https://www.shiksha.com/university/nlsiu-national-law-school-of-india-university-bangalore-483/admission
I am not sure about the Diploma but NLSIU regularly conducts certificate course in Medical Law and Ethics.
Hope this helps!!