Colleges in Sirmour

First of all, getting an IIM call depends on a lot of factors other than CAT percentile like number of applicants, seats available etc. Officially IIM Amritsar requires 90 percentile and IIM Sirmaur and Kashipur both requires 95 percentile for a general category student to get a call for GD PI. But

For admission in Himalayan group of institutions, you need to appear for an interview. The shortlisting will be done on the basis of percentage in you 10th, 12th and graduation and performance in the interview.
You can contact the admission department for any clarification: http://www.himalayaninstit