The IIMs generally have a 2-3 stage process of admission but IIM Kozhikode follows an admission process that is a 3 stage one. It is described as follows:
The required percentile changes every year so it is difficult what percentile will ensure a call. So, keep a target of 99 percentile, to be safe.
Keep yourself up to date in general knowledge, HR-based questions, academics, current affairs to stand out in the interviews. Work experience is also a big plus.