how much I have to score in cat so that I will get admission in army institute of management Kolkata and noida

Cutoff of AIM, Kolkata last year was around 73 percentile. As per predictions and looking into the similar level of difficulty of paper this year too, the cutoff ought to remain the same. So, if you score above 75 percentile you will get a call from AIM, Kolkata for GD-PI.
Fees of AIM, Kolkata is 4,28,000 /-,  average package being 4 lpa approximately. For more details pertaining to admission in AIM, Kolkata you can contact
Details:-
Contact Number: 033-2479 4494
Email Id: admission_cell@aim.ac.in
Website Url: AIM Kolkata
A similar cutoff of CAT for AIM, Noida. It is also 70 percentile.
Just a reminder :
Last Date for Receiptof CompletedAIMT Application Form: 31st Jan 2018
Last Date for Receipt of Completed AIMT Application Form with late fee of Rs.200/-: 28 Feb 2018
Declaration of short-listed candidates for GD & PI at AIMT, Greater NOIDA: 02nd Mar 2018
Group Discussion (GD) & Personal Interview (PI): 30th - 31st March 2018
Commencement of Orientation Program: 23rd July 2018
Hope this helps. All the best!!