INS and type 2 diabetes mellitus: Diabetes a well-known disease of pancreas which is further classified into different types such as type 1 diabetes mellitus (T1DM) earlier known as insulin-dependent diabetes mellitus (IDDM) or juvenile diabetes mellitus, an autoimmune disease in which beta cells of the pancreas are destroyed [7] and thus does not produce and secretes insulin and type 2 diabetes” (T2DM), also called as non-insulin-dependent diabetes mellitus (NIDDM) or adult-onset diabetes which is characterized by a decrease in insulin production [8].