Imidazole scaffolds are important class of biologically active molecules. Its derivatives were higly used as fungicides, anti-fungal and anti-hypertensive drugs. Imidazole is widely used in the industry, which contains corrosion inhibitors, flame retardants, photographic and electronics. The multi-component reaction (MCR) is a fast and efficient synthesis strategy to afford heterocyclic derivatives in which two or more of the reactants are combined in a sequential manner to obtain the desired compound with high regioselectivity. In this thesis, we report the synthesis of 2,4,5-trisubstituted imidazole and 1,2,4,5-tetrasubstituted imidazole analogue by utilizing molecular iodine ( I2 ) as a catalyst via MCR methodology in a mild and efficient way.