Should I consider doing Masters?

I have Bsc CS degree from a mid college in Mumbai under Mumbai University. I don't have any side projects to write home about. I am working as a Junior dev at an early stage yc startup and I am enjoying working here and learning a lot. But people around me keep telling me that a Masters degree will open up more opportunities. So i just wanted to know, is it worth doing a masters? Or should I keep working and gain experience and build side projects?