Dear Mouli,

          You can get mining in NIT Raipur(General Category) only if it is your Home State. 

Cutoffs for the NITs for B.Tech Mining Engineering depends on

>Number of applicants who have applied for B.Tech Mining Engineering.

>Difficulty levels of the question papers.

>No of seats available for B.Tech Mining Engineering in NITs.

Check the previous Cut-off for mining Engineering in different NITs in the following link: https://engineering.careers360.com/articles/nits-cutoff-for-btech-mining-engineering