Hi Venkatjalpathy,
In a microflow, where you want to send the email,
you can create a string variable, there, you can create the contents of the email, which you want to send.
I'll recommend using html format, for the email content.
Then create an emailMessage object from the email module,
Retrieve the EmailAccount and set the email content into the emailMessage
and use the SUB_SendEmail submicroflow to send the email.
You can refer from the image below,
Let me know, if you have any issues,
Hope it helps!