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.
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