Hey there as per your jee mains ranking the chances of you to get RGIT, mumbai is low. As there previous year cutoff for all branches are close at below 50,000. You can apply for the following colleges -

1. Atharva college of engineering, mumbai

2. Singhad college of engineering, pune

3. GH raisoni Institute of engineering and technology, nagpur

4. YCCE, nagpur

5.Shri jaykumar rawal Institute of Technology, mumbai

6. Homi bhabha national Institute, mumbai

7. Amity university, mumbai

8. LN group of Institutes, mumbai

9. S.S.P.M college of engineering, mumbai

10. Kohinoor technical Institute, mumbai

Good luck.