Perl uses iso-8859-1 and UTF-8, so
Characters U+000000 to U+00007F take one byte.
Characters U+000080 to U+0000FF take one (iso-8859-1) or two (UTF-8) bytes.
Characters U+000100 to U+0007FF take two bytes.
Characters U+000800 to U+00FFFF take three bytes.
Characters U+010000 to U+10FFFF take four bytes.

Wikipedia indicates Hindi uses Devanagari script (U+000900..U+00097F). All indic scripts are above U+000900. 

use Encode qw( _utf8_off );
my $x = chr(0x900);
_utf8_off( $x );          # Get internal representation.
print(length($x), "\n");  # 3

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In reply to Re^8: Perl Modules for handling Non English text by ikegami
in thread Perl Modules for handling Non English text by paragkalra

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