Q. Can u please tell me why was Lord Ram sent on exile nothing but only for specific 14 years?And why is it that They spent most of their time at Chitrakut?
A. I have not read any specific reference that explains the reason why Lord Ramacandra spent exactly 14 years (and not more or less) on exile, most of which was at Chitrakut (and nowhere else). His stepmother demanded 14 years of exile. There may or may not be a reason apart from this.
It is just logical that when a person spends a long time outside his home at various places, one place has to become the place where he spends the most time. And that time has to be a real number. If not 14, something else. If not Chitrakut, somewhere else.