Dear candidate

Yes you can get into NIT Hamirpur with 70,000 rank as you have OBC reservation in home state quota and all other that you have mentioned and you can get into many branches like chemical engineering, Electrical engineering, Electronics and communication engineering, Material science and engineering, Mechanical engineering because the respective cutoff rank for these branches are more than your rank which is 70,000 according to the cutoff trends of NIT Hamirpur 2019

Visit the below mentioned link to know the branch and category wise JEE Mains cutoff trends of NIT Hamirpur

https://engineering.careers360.com/articles/jee-main-cutoff-for-nit-hamirpur

Hope this Information is helpful