You can modify the Name Servers of your Domain Names (except .EU and .UK Domain Names) in Bulk. Please follow the steps mentioned below to do the same:
1. Login to your Customer Control Panel from
http://domain.whiz.in/customer.
2. Go to Domains -> Domain Registration -> Bulk Actions -> Bulk Modify, there you would have to enter the Domain Names whose information you wish to Modify or you can Search the same by Searching from the Search form provided below on the same page.
3. Here you can Modify the Contact Details by using any of the Contacts Available. If you wish to Add a new Contact, you can do so from the Control Panel by going to Domains -> Domain Registration -> Contact Management -> Add.
4. Below, you would find the Radio Button, select the FIRST BUTTON, if you do not wish to Modify the Name Servers and SECOND BUTTON, if you wish to Modify the Name Servers as well.
5. Enter the Name Servers, that you wish to keep for all the selected Domain Names and hit Submit.