E-learning and Big Data are correlated with each other. Online learning is Elearning. As the quantity of data increases day by day and it becomes huge and giant. A few years ago,data was measured in gigabytes then in terabytes and nowadays it is measured in dozens of petabytes.There is a bombardment of Different types of data like Facebook, Twitter, biological data, industrialdata, the Internet of things, mobile phones, cameras, audio, video, educational data, and sensor data