Generally the cutoff for getting into NIT:

• General Category:- They need to have rank below 50000.
  
• Reserved Category :- They need to have rank below 100000.

But this does not guarantee branch of your choice.

According to previous years cutoff for general pwd category,I think your percentile is more than enough to get you into NIT.According to your percentile your rank is around 931128,and since you belong to the reservedc category,you can easily get through it.

In that case you have a better rank and might get the branch of your choice as well.

Hope this helps,Feel free to ask in case of any doubt.