I have got 89.6% in 12th and 272 marks in JEE Mains. Can I get admission for CSE in Mumbai?

You have excellent scores. Though, you will get CSE big NIT's as well. Though, if you want Mumbai as your priority, you will get CS in Mumbai in any college which accepts JEE Mains as their entrance.

That is an awesome score in both Mains as well as boards You might participate in the counselling process which will be starting from 7th June on the official website of DTE Maharashtra. Register yourself for the counselling process through ALL INDIA QUOTA which admits students through their JEE Mai