Online teaching and learning is the method of taking classes using any mode of online app, delivery of notes or training using digital resources and this method is based on formal teaching and learning. This kind of online learning includes devices namely computers or laptop, tablets and smart mobiles by using internet. This method helps the users to learn from anywhere and anytime with some or without any restrictions. In general, online learning is a method of learning or educating people through online using any digital devices. During this Covid-19 pandemic period each and every industry worked though online mode, staffs are work from home without any lagging of their works. Each and every student was motivated to develop themselves by taking online courses and their self learning skills. This study is about online teaching methods that either helps the teachers and students in education or overburden them.