Hello Rahul,
For the best startup and job opportunities for digital marketing, Bangalore is best.As everyone knows it is the hub of jobs and companies.
There you will get a lot of job opportunities for digital marketing, as nowadays every venture or company needs marketing for the good sales of their product. So comparing both pune and bangore. you should go for banaglore.

I hope this helps you out. If there is anything else that I can help you with, then please let me know.
Till then, all the very best. Stay home and stay safe.