This video contains detailed study on digital switching. It is uploaded for my students in public domain under the special situation ongoing. As no physical class possible presently, this is uploaded for my own as well as all the other student and learner across the globe. It will be matter of my immense pleasure if it helps them by any means. Topics covered: 1. Time Switch 2. Space Switch 3. Time Division Time Switch 4. Time Division Space Switch 5. Time Multiplex Space Switch 6. Time Multiplex Time Switch 7. Hybrid Switch (i) TS (ii) ST (iii) STS (iii). TST