Hello Atul

If we go by last year’s cut-off for General Category, which was 3896, you won’t be able to get into IHM Shimla. But if you are from Physically Disabled (cut-off was 21,373), SC (cut-off was 14,724), ST (cut-off was24,126) or OBC ( cut-off was12,757) categories, then you have a chance of getting into IHM Shimla.   

Hope this helps and all the best!