Ramesh first of all nits are good at the placement perspective. You can be relaxed if you are studying from nit but you also have to be consistent for great placement opportunity. Nits are listed below as per good ranking in cs department.

• Nit,tiruchirapally
• Nit warangal
•  Nit calicut
• Nit alhabad
• Nit Delhi
• Nit Jaipur
• Nit rourkella
• Nit durgapur etc.

So you don't have to worry about placement .First prepare well to get a good not from this list.If you can get nits from top of the list then placent of those are absolutely good.