Abstract: Microcontrollers and microprocessors are finding their way into almost every field in today’s world, incorporating an element of ‘smartness’ into conventional devices. Energy efficient, space efficient and optimized microcontrollers are the need of the day. Our paper proposes a new Instruction Set that is a subset of the MIPS architecture. It derives the advantages of MIPS like simplicity and speed. Besides, since it is a smartly optimized subset of MIPS, it is a smaller version consisting of the most commonly required instructions.