Vedic Tone(udatta, anudatta) characters in telugu aksharamala

[Surya]

Hello,

Thanks for providing a great tool for writing in telugu and hindi. It
is really a wonderfull feeling to use this tool. Currently I am using
Aksharamala Telugu to compile some vedic suktas. However Telugu RTS
doesn't include Vedic Tone characters(udatta, anudatta). I was
wondering whether I can add these 2 characters to the RTS via keymap.
Would somebody help me on how to write that keymap ?

thanks a lot for your help!!!
Giridhar