Hello student you can calculate and get your rank by using this formula
100 - (your total percentile) 869010 /100
In your case your rank must be around 17380
You didn't mention you've domicile of which state if you've state quota of Himachal pradesh then you'll get admission but if your from outside Himachal pradesh it's difficult to get admission with all india quota. As we all know that seats are very limited and admission is directly based on merit rank.
For more updates refer to the link mentioned below - https://www.google.com/amp/s/engineering.careers360.com/articles/jee-main-cutoff-for-nit-hamirpur/amp
Feel free to comment if you have any doubt