Bachelors

Hello Avadhesh,
It's very nice to see your dream of seeking admission in IITs or NITs. The situation is that IITs accept Diploma as equivalent to 12th but unfortunately NITs do not. Hence, tighten your belt and go all out with aim of clearing JEE Mains and JEE Advanced with good marks so that you will get admission in an IIT. Also, don't forget to score more than 75% in your Diploma.

You can check few sample papers to know that. Go through the link below. Https://http://shiksha.com/design/industrial-product-design/articles/sample-questions-for-nid-entrance-exam-2017-blogId-11946.

Hi Nishant,
NIOS is accepted worldwide but each foreign university has its own admission rule, you have to email them and share your certificate with them to get it checked.

DU is one such university which conducts entrance exam for English (Hons.).

Hi,
You can apply for B.Des Fashion Communication at NIFT.

Symbiosis is the top university in Pune for Mass communication. If you clear the entrance exams, your future in the industry will be sought.

Top 10 undergraduate mass communication colleges in Delhi are:
Https://http://shiksha.com
Above links can help you out. If you wish to apply in DU for journalism and mass communication, you must check the above mentioned links. There is an entrance exam. If you qualify those exams, you get admission according to your rank.

Hi Rohit,
Yes, you can definitely pursue Masters in advertising once you complete your graduation. All the colleges and institutions have their different criteria of eligibility and admissions but it is mandatory to complete your graduation from a recognised University. You can find top 5 colleges offering post graduation/Masters in advertising by clicking on this link:
https://www.shiksha.com/mass-communication-media/articles/top-5-colleges-offering-advertising-courses-in-india-blogId-11049.