How to change task assignment email content?

When entering a task, and you request to sent notification email - you receive a task assignment email
subject as follows: Zoho CRM - You have a new Task (Subject: task name)
then all it shows is the subject of the task (as a hyperlink to the task) and the due date.

I would like to modify the data that appears on this email - to show the related customers info.

Can anyone help me as to how I could do this?

Thanks in advance :)

Jo