I would like to create the email alert by informing particular user created the list item ,That specific column of list item is updated .
Can anyone help me how can I do this.
you can use out of the box solution with mixing Alert Features and versioning feature.
Alert Features for notification.versioning to check what's changed.Another solution is to create workflow on item update and send notification to created by user with the details of item updated but it needs more work to get old value and new value for specific column, you can also check this
The steps to use Alert :
On the New Alert page, in the Alert Title section, change the title for the alert if you want. The title appears in the subject line of the alert e-mail message.
at Send Alerts To , enter the user names or email addresses of people you want alerts to be sent to.
In the Delivery Method section, select the method of delivery you want for your alerts.
Choose the types of changes that you want to be notified about. For example, you can receive alerts about all changes or only when items are modified.
In the Send Alerts for These Changes section, specify whether you want to be alerted for all types of changes, or for specific changes, such as when anything changes or only when someone changes an item that you created or recently changed.
In the When to Send Alerts section, choose how frequently you want to receive the alerts, such as immediately or in a daily or weekly summary, and at what day or time.
NOTE: For mobile (SMS) alerts, Send notification immediately is the only option.
Check also if The “Alert Me” button is not visible on the ribbon in SharePoint
The steps to enable versioning