Although the peristaltic flow has been a topic of scientific research during the past few decades, but in recent years it has received much attention due to its application in engineering and physiology. Peristalsis has its own importance in much biological systems, in spite of the several applications of non-Newtonian fluids in polymer, processing industries, bio fluid dynamics, petroleum, drilling and many other similar activities. Many theoretical investigations has been carried out by assuming that blood and other physiological fluids having like a Newtonian fluid of constant viscosity...