How tio join videos

from where did you downloaded, please say the source, so that we can tell you..

Those vedios are CS Saurabh Jain classes

If you want to join, explore the below link and contact them.....

https://www.igpinstitute.org/faculty.php

they are availbale in New Delhi...

ok, I think as the hosting server is down, it might be not downloaded properly, 

the classes are free to join, have you created account in file factory?

it is necessary for that......