Mumbai

No, you cannot get a good college in Mumbai with these marks.

Top colleges in Mumbai are:
Trade-wings Institute of Management. Mumbai. Institute of Hotel, Cargo and Tourism Management. Mumbai. Institute of Logistics & Aviation Management. Mumbai. Indian Institute Of Business Management & Studies. Frankfinn Institute of Air Hostess Training (FIAT)
IIFLY Training Centre. National Institute of Retail Management.

As far as "how" the MBA Tech course is. It will GET you a better package than B.Tech (mostly) but if you want to GET into management, then NMIMS' MBA (post graduation) from School of Business Management is a much better option as it has more value and will land you better packages. And for the learning part (if you are interested in it), it all depends on how much willing you are to learn.

Hello Shubham,Based on the data of last year, one can say with certainty that those with valid score in MHCET are bound to get admission in one of the engineering colleges. However, it depends on merit. To help you, I am attaching a link that will predict college for you. https://www.shiksha.com/b-tech/resources/mhcet-college-predictor.