JEE

You might find it tough getting admission into the B. Tech IT program at Dwarkadas J. Sanghvi College of Engineering with an 89 percentile in the JEE since an expected cutoff for IT can be generally around 96 percentile or more for general category students.
Since you are applying under the Gujarati quota, which reserves 51% of the seats for Gujarati linguistic minority candidates, your chances might improve. The cutoff tends to be lower for Gujarati candidates, but the competition is not that weak. It would be advisable to look into the trends of the specific cutoffs for the current admission cycle and participate in the Maharashtra CAP counseling process for better insights.

A 92 percentile in JEE Mains can barely help you enter into an NIT, formulating a sweet proportion for' computer Science and electrical engineering branches. Well, there are still chances that you might get into some NITs and branches, even though they may be slightly messy in cutoffs or have lower openings with new institutions.

To improve your chances:

You aim for the new NITs or the ones with low cutoffs.
You can consider branches like Civil Engineering, Chemical Engineering, or Biotechnology, which have lower cut-offs as compared to core branches such as CSE or ECE. 
The final allocation of seats shall depend on your category of General, OBC, SC, etc., the opening and closing ranks and the NITs that you would be targeting. Keep watching the JoSAA counselling process to get the latest and most accurate information.