Hi Sravanti,

The cutoff differs from college to college and also whether you are from home state quota or other state quotas. Here is the cutoff for 2018 for different NITs for OBC in both the quota-

College                                              Home state closing rank        other state closing Rank

• Malaviya National Institute of Technology, Jaipur 1688                                  779
• Maulana Azad National Institute of Technology, Bhopal 2192                               772
• National Institute of Technology, Calicut 393                                506
• National Institute of Technology, Hamirpur 38348                              888
• National Institute of Technology, Patna 1478                                930
• National Institute of Technology, Raipur 13542                               883
• National Institute of Technology, Rourkela 2087                                610
• National Institute of Technology, Tiruchirappalli 577                                 319
• Visvesvaraya National Institute of Technology, Nagpur 701                                 700

For more information and cutoff you may visit https://engineering.careers360.com/articles/jee-main-cutoff-for-b-arch-b-planning

Hope this was useful for you.

All the best.