hey gsivaprabu,
I think I fixed the problem on my end. What PHP version are you running? It looks like the how it determined a couple file paths would only work with PHP > 5.3. It was using __DIR__ instead of the following
I updated tmOAuth.php lines 67 & 68 to
'curl_cainfo' => dirname(__FILE__) . DIRECTORY_SEPARATOR . 'cacert.pem',
'curl_capath' => dirname(__FILE__),
