Online learning systems have expanded significantly over the last couple of years. Massive Open Courses (MOOCs) become a major trend on internet. During COVID-19 pandemic, count learner enrolment has increased in various MOOC platforms like Coursera, Udemy, Swayam, Udacity, FutureLearn, NPTEL, Khan Academy, EdX, SWAYAM, etc. These offer multiple courses, and it is difficult for online learners ...