Job referrals or leads at Schbang or other advertising and marketing agencies

I want to enter into the marketing domain and I'm from a city where there are no big agencies. Mumbai is a city that is full of opportunities especially for marketing and I really need this for my career. I have had 2 internship experiences before One in content writing and another as an e-commerce executive. Please, I really need help and it's really important for my career at this point because I've had gaps. If you're reading this, thanks, do share your insights.