Hello student if you're qualified then congratulations and its very simple procedure all you need to carry your all documents like class 10th marksheet, class 12 marksheet, aadhar card, nift entrance exam admit card nift entrance exam result. 

Also it's very easy to predict college on career 360 by clicking on the link mentioned below its very user friendly and very helpful 

https://design.careers360.com/nift-college-predictor

Feel free to comment if you have any doubt 

Good luck