With 85.4 percentile, you can expect your All India Rank to be around 13000-133000. With this rank there are less chances of getting into NIT through open quota. Since you are from OBC category, you may get a seat in some NITs based on your category rank.

You can check the last years' cutoffs, using the links given below, to predict the NITs where you may get admission based on your percentile:

https://josaa.nic.in/webinfocms/Public/View.aspx?page=71

https://josaa.nic.in/Result/Result/OpeningClosingRankArchieve.aspx

To check the complete list of Institutes where you may get CSE or any other branch, kindly use the link provided below: