In header section I used properly Meta content

    <meta http-equiv=\"content-type\" content=\"text/ html; charset=UT
+F-8\">
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In form section also i used properly utf-8

    <form accept-charset=\"utf-8\"></form>
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Next page param receiving

    my $title_checking=$cgi->param("title_checking");
    print "$title_checking";
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ஸ்ரீசாந்த், சவான், சண்டிலா ஆகியோர் தங்களது குற்றங்களை ஒப்புக் கொண்டதாக தகவல் Like that i receiving

I suggest just to be sure you walk along each character to find the difference. Something like this:

# there are probably better ways of doing a string diff...
my ($s1, $s2) = ($title_checking, $titlenamefromindex);

for (my $i = 0; i < length( $s1); $i++) {
   print "Different at $i\n" if (substr( $s1, $i, 1) ne substr( $s2, $
+i, 1);
}
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(You may need to make minor fixes to above)
If you spot any bugs in my solutions, it's because I've deliberately left them in as an exercise for the reader! :-)