Play with Unicode characters

Here are few links to convert Unicode characters to code point/Uri percent encoding/decimal NCR etc.

905 represent hex अ in Hindi:

http://people.w3.org/rishida/scripts/uniview/uniview.php?codepoints=905

Get full details of each character at this FileFormat.info site. This link will shows Unicode character "अ" detail.

Convert any char to code point/numeric value:
Need to use any char which is not a supported language in your HTML document or you do not have the language installed then you can use this tool for conversion to HTML entities etc.

Update: Few more links:
Tool to Convert Character To Html Entities
http://konieczny.be/article/utf.php
http://rishida.net/tools/conversion/
http://rishida.net/scripts/uniview/uniview.php