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Hi Joel, Thank you for your response.

Hi... Thank you so much for your reply.. I was implementing  the changeswhich may work.. but they didn't. I recently came to know about updates to seomoz api which are like, SEOmoz Free API: 1 request for every 10 seconds Free Extended and PRO Members: 1 request every 5 seconds SEOmoz Site Intelligence API: 1 request every 2 seconds I think this will help me a lot .. thank you ..