How to delete all spam mails send by single sender in Gmail

It might be frustrating to see uncountable number of spam mails in your inbox when you open your email account. Some times you cannot mark those mails spam for some reasons like you might be bonded to subscribe their mails instead of some service you are using. So you cannot unsubscribe or mark the mails as spam. In every email services they have an option to delete those mails before come to your inbox. This is really simple and this post is just for newbies. Here I discuss how we can delete all the mails based on any of the following conditions.
1. Address of the sender
2. Subject of the mail
3. Specific words in the mail
In gmail we need to create a mail filter to filter out all the mails satisfying the condition which we set. Then we can set the result as delete all the mails satisfy the condition before coming to our inbox. To perform this follow the steps below.
1. Log on to your Gmail account
2. Click on Settings

3. Click on Filters tab
4. Now click on Create a New Filter
5. Set filter criteria
Here you can set the criteria for your filter. You can set in on the basis of sender email address , subject of the mail or specify the keywords you need to set as criteria. After setting this click next.
6. Now check Delete it and Also apply filter to X conversations below

7. Click on Create Filter
Now onwards the mails which comes under filter criteria will be deleted before coming to your inbox. If you apply filter to the already present mails they too will be removed from your inbox.