Abstract
The spread and threat of COVID-19 has brought the world under standstill. Educational institutions are not exempt. The pandemic has forced the universities to transform from traditional teaching-learning methods to web-based digital teaching-learning methods. Claims are being made that future teaching would be fully online rather than traditional or in-class mode. There are many challenges in implementation of online classes and at the same time there are possibilities to enhance the knowledge and resources required to build the global online education network. This paper reviews the challenges and possibilities in teaching and learning online, various technological tools and their outcome practiced by the academicians to conduct the lectures and assessment activities. A special attention has been paid to the impact COVID-19 on mental health and anxiety among the staff and student community.