In my openion i must prefer you to go for marketing, this will be more helpful gor you in future and has a scope to. i am personaly suggesting you to go for marketing. all the best.

• Dear
• Yiu have following options for PG.
• Symbiosis Institute of Media & Communication, Pune. ...
• Lady Shri Ram College for Women, Delhi. ...
• Christ University, Bangalore. ...
• Manipal Institute of Communications, Manipal. ...
• Amity School Of Communication, Noida.
• Asian College of Journalism(ACJ) Chennai 
• Department of Communication and Journalism Pune
• MICA Ahemdabad

Great that you have clarity regarding your selection of specialisation Sachin!

Some of the options to pursue your Advertising and Marketing are from,

1. XIC, Mumbai- PG Diploma in Advertising & Marketing Communication

2. Sri Aurobindo Centre for Arts & Communication- Postgraduate Diploma in Advertising and Public Relations

3. IIMC, New Delhi- PG Diploma in Advertising and PR

4. Bharatiya Vidya Bhavan- PG Diploma in Advertising & Sales Management

5. Apeejay Institute of Mass Comm- Post Graduate Diploma in Advertising & Marketing Communication

6. MICA- Post Graduate Certificate Programme in Advertising Management and Public Relations (online), if you are interested 

You can read more details here: https://media.careers360.com/articles/top-mass-communication-courses-in-india

Good luck!