Delete or Remove Multiple Bulk Gmail and Google Contacts With One Click on Android And Windows

Delete Google Contacts Via Computer – Windows Chrome

1. Go to Google Contacts.
2. Select one of the following:

• A single contact: Check the box next to the contact name.
• Multiple contacts: Check the boxes next to all the contacts you want to delete.
• All contacts: Check the box next to any contact. At the top left, click the Down arrow   All.

• At the top right, click More   Delete  Move to trash. 

• Your contacts are moved to Trash, where they’ll stay for 30 days before they’re deleted permanently.
• To delete a contact permanently, go to “Trash,” select the contact, then click Delete forever.

Remove Google Contacts Via Android Phone

1. On your Android phone or tablet, open the Contacts app .
2. Select an option.
   • A single contact: Tap the contact. At the top right, tap More   Delete  Delete.
   • Multiple contacts:
     1. Touch and hold a contact and then tap the other contacts.
     2. Tap Delete   Delete.
   • All contacts: At the top right, tap More   Select all  Delete   Delete.
3. Your deleted contacts are moved to your Trash.
   • After 30 days in your Trash, contacts are deleted permanently.
4. To delete contacts permanently, in your Trash:
   • Single contact: Tap the contact  Delete forever  Delete forever.
   • Multiple contacts:
     1. Touch and hold a contact and then tap the other contacts.
     2. Tap More   Delete forever  Delete forever.
   • All contacts: Tap Empty Trash now  Delete forever.

Courtesy:

https://support.google.com/contacts/answer/7280886