we already subscribe for thermodynamics – chemistry. But the vedeo lessons are not running continously.lot of interuptions.

dear kamalada 
kindly switch your video lessons to “AUTO “ quality mode while playing , it may be due to your internet connection problem . 
so, in auto mode it will adjust acc to the bandwidth of the connection . 
in case of any more query , drop a mail to the askiitians support team . 
GOOD LUCK 
REGARDS