India

Hi Kushagra,
Sorry for a delayed response to your query. Every country and university has different admission requirements. Better guidance can be given if you could have mentioned your education background.
And in India, here some famous ones:
Indian Institute of Journalism & New Media
Symbiosis Institute of Media & Communication (PG)
The Asian College of Journalism
to name a few.

No. If you study hard, it will not at all be difficult. Before appearing for exams, solve past papers of 12th. You should thoroughly revise everything as nothing comes out of syllabus.

At par with EEE or ECE and in few industries more than them. You can not define the salary based on the branch. It goes by your capability and the company hiring you!

Please mention the course you wish to pursue as medical is a vast field.

IIHMR, Devi Ahilya Institute, FMS Delhi and AIIMS Delhi are some good colleges. Alternatively, other decent private colleges below:
> Amity School of Hospitality
> Welingkar Institute of Management
> SP More Foundation
> Academy of Meritime Education and Training
> Delhi Business School
> Hierank Group of Institutes
> FHRAI - Institute of Hospitality Management
> Tilak Maharashtra University
> Kohinoor College of Hotel and Tourism Management Study
> Saraswati Group of Institutes

Amity, Noida and Fortune Institute are two great options you may get at your score, check other alternative options below.
https://www.shiksha.com/mba/ranking/top-mba-colleges-delhi-ncr-accepting-mat/2-0-0-10223-306

The most affordable and best institute to pursue post-graduation in mass communication is IIMC.

There are so many in list dealing math for higher study Some are-
1. Chennai mathematical Institute - Chennai
2.Indian statistical Institute - Kolkata, Delhi, Bangalore
3.The Institute of Mathematical Science - Chennai
4. Tata Institute of Fundamental Research- Mumbai, Bangalore
Best wishes.

You are eligible to seek admission in B.Sc Hospitality and Hotel Management degree course provided you have English as a subject in 10+2 stage.