Mohna R,

First, let me welcome you to this wonderful site, dear!

Rajitha - as it is- is already unavailable on most of the sites (which provide email id facility) I checked. Still, do not lose heart, as you can append your DOB year, in the following way - if you are born in 1990, write rajitha1990 or rajitha90 or rajitha21. Similarly, you can add your gotra in the end. Like rajithagupta, rajithavarma or rajithagopal. Other way is to append or prefix your passion or profession - for example, I love writing and so I have an email id (suppose)
[email protected]
If you sing sometimes, or your passion is kitchen work, you can write as
[email protected] or [email protected]

Does it help?