Hii Sanin,

You can be a consultant by studying anything at your bachelor's level also but a master's degree is preferred. Consultants are the people who consult clients, manage them and provide them the necessary services which they are offering. Pursuing an MBA would give a head start to your career in consulting. Top consulting companies are EY, McKinsey, Goldman Sachs, KPMG etc.

Hope it helps.

Thanks.