hi,

If you fall under general category: at least 170+

OBC: at least 100+

SC/ST/NT : 70–80+ would do

Various participating IHMs will have various  cut off for various catergory 

But generally for general the closing rank may be under 4000

As for obc under 6000

For sc/st under 8000.

for more details  catefory wise and institution wise check the link below

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

GOOD LUCK