The covid-19 pandemic has given an entire new dimension to the teaching learning process. Work from home for school and college teachers in India has opened up new resources and tools for adopting teaching methodologies in the virtual mode of education which will have long term effects in the teaching pedagogy. Whatever may be the methodology of instruction, what remains common is the use of e-resources, techniques learnt by teachers on war front in the lockdown period and the wide use of social media for communicating with the students. The challenge was more daunting for mathematics teachers who had a tough job in first learning online tools for teaching and then communicating effectively with the students. The paper is an attempt to study the use of social media as an education tool for mathematics teaching and communication to bridge the gap, with special reference to undergraduate students in cities of Mumbai and Thane. The researcher has used primary data as well as secondary data for the study.