Question regarding handling of Unicode data in Devnagari

[joy99]

Dear Group,

As per the standard posted by the UNICODE for the Devnagari script
used for Hindi and some other languages of India, we have a standard
set, like from the range of 0900-097F.
Where, we have numbers for each character:
like 0904 for Devnagari letter short a, etc.
Now, if write a program,

where
ch="0904"
and I like to see the Devnagari letter short a as output then how
should I proceed? Can codecs help me or should I use unicodedata?

If you can kindly help me.

Best Regards,
Subhabrata.