Hello @Senthilkumar,
As a first suggestion, we ask you to restart your equipment and test it again.
If the difficulty persists, you will need to contact our technical support line.
You can contact our technical support so that the appropriate tests can be carried out to resolve the problem, by calling 16913 or 911 691 300 (charged at the Vodafone mobile network rate) every day from 7am to 2am.
We thank you for your understanding and hope that the situation will be resolved as soon as possible.
Thank You,
Rodolf_Vodafone