Hello Abhi,

Hope you are doing well.

On the basis of your rank obtained there seems less chances of yours to get CSE in JEC.The rank you obtained does not comes under the closing rank required to get CSE in JEC when compared with previous year closing rank.The previous year closing rank for OBC was between 77-70 .You can also visit the link below to see previous year closing rank of JEC:

https://engineering.careers360.com/articles/assam-cee-cutoff

Hope this will help you!

All the best for your bright future!