  In this paper I have given a mathematical model of Cell reprogramming from a
different contexts. Here I considered there is a delay in differential
regulator rate equations due to intermediate regulator's regulations. At first
I gave some basic mathematical models by Ferell Jr.[2] of reprogramming and
after that I gave mathematical model of cell reprogramming by Mithun Mitra[4].
In the last section I contributed a mathematical model of cell reprogramming
from intermediate steps regulations and tried to find the critical point of
pluripotent cell.
