With 90% in your diploma in Computer Science, you have strong potential for lateral entry (direct into the 2nd year) of B.Tech in Computer Engineering from polytechnic at many top colleges in Mumbai.

To be eligible for lateral entry you usually need at least 50% in diploma (45% for reserved categories), so your 90% is well above that.

Here are some good colleges in Mumbai offering lateral B.Tech in Computer Engineering:

VJTI (Veermata Jijabai Technological Institute)
SPIT (Sardar Patel Institute of Technology)
TCET (Thakur College of Engineering & Technology)
PVPP (Padmashree Vasantdada Patil Polytechnic)
KJ Somaiya School of Engineering
Fr. CRCE (Fr. Conceicao Rodrigues College of Engineering)

In top colleges like VJTI, closing merit for computer engineering is often in the 90+ percentile range, but your marks are competitive.

For mid-tier colleges like SPIT or TCET, closing percentiles range from 90 to 96 percentile. With your high diploma marks, you have a good chance, especially in the direct second-year DSE (Diploma to Second Year Engineering) admission process.

The Maharashtra CAP counseling portal (for 2nd-year admissions) will open later this year. During counseling you can list these colleges in your choices based on your preference. After seat allotment, you’ll need to verify documents and pay the fees.

So yes, 90% in diploma makes you eligible and competitive for good and popular B.Tech Computer Engineering colleges in Mumbai. Just apply during lateral entry counselling and list your preferred colleges.