Well Nagesh congratulations on scoring such good rank in NIMCET. You said that you have rank of AIR 1004 and in OBC category you have rank of 270. 

Now if I consider previous year rankings for different nit then I found out that you are eligible for all nit except nit Trichy as it closed around 180 . But you will get others like Warangal, Surathkal, Allahabad, Calicut etc.

All the best. 

Thank you.