Hello, with your percentage it might be difficult to ge into a top college unless you are from any of the reserved categories and have domicile in Mumbai. Keep checking the cutoff lists in various college websites of Univ of Mumbai. 

Best Colleges for BSc IT:

• St. Xavier's College
• Elphinstone College
• kirti M doongursee college of arts, science and commere
• Jai Hind College
• Ramniranjan JhunJhunwala college
• SIES college 
• Wilson College