It is so obvious to have link and role in every field and every action of our life, including business administration, as human behavior would help us understand the meaning, purpose, background and philosophy of every action in every human made process. So it plays a vital role in the field of business too as humans are directly involved in it as manufacturers, sellers, managers, buyers, consumers, retailers etc. The most important department of business related to psychology is the marketing department, which tends to understand the needs of consumers/customers and fulfilling those needs in the best economical way