With the organizations going online, the consumers now have the ease to utilize the online resources for their convenience. However, this ever-increasing online consumer population has led to a huge growth in the amount of information that the organizations need to manage. How to utilize that data is another big question that organizations are often faced with. This is where Big Data comes into the picture. Huge volumes of data can be more effectively utilized with the use of platforms available in Big Data. It not just provides storage space for a large amount of data but can be used to extract value out of that data. Over the past few years, Big Data has emerged as the next step in technology, where to engage Big Data or not is the question to think. Organizations are contemplating how to use Big Data. Insurance, telecom, healthcare banking, and many more sectors are actively taking up Big Data. Purpose of this review paper is to know the concepts of Big data analytics which can be beneficial for beginners who are interested in this technology.