Jain Deemed-to-be University, Bangalore

It's difficult to provide a definitive answer as admission requirements may vary by college and programme, and the number of seats available may also differ from year to year. However, I can provide you with some general information. DCET (Diploma Common Entrance Test) is a state-level entrance exam conducted by the Karnataka Examination Authority (KEA) for admission to second-year engineering courses in various colleges in Karnataka. Based on your expected score of 90 marks in DCET and 70% marks in your CSE Diploma, you may have some options for colleges in Bangalore. Some of the colleges in Bangalore that offer engineering courses and accept DCET scores include:
RV College of Engineering
BMS College of Engineering
PES University
Dayananda Sagar College of Engineering
New Horizon College of Engineering
Sir M Visvesvaraya Institute of Technology
Nitte Meenakshi Institute of Technology
Reva University
CMR Institute of Technology
Acharya Institute of Technology
It's important to note that admission to these colleges may also depend on other factors such as the number of available seats, the number of applicants, and the competition for the programme. I would recommend that you research each college's admission requirements and cutoffs to get a better idea of your chances of getting admitted. You can also consider reaching out to the admission offices of these colleges for more information.