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.
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!
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