Dear aspirant,

As you have scored 450 marks let me tell you that its very difficult to predict your rank because the dynamics gets changed every year. However various factors are considered while deciding the cut offs like number of candidates appearing in the examination, number of vacant seats in college, previous years cut offs and difficulty level of the paper.

But you can expect a rank of 2-3k but it depends on above mentioned factors.

To get complete information you can check out the link given below-

https://hospitality.careers360.com/articles/nchmct-jee-cutoff