Vodafone India — Require call and message history

Address:

East Godavari, Andhra Pradesh

Dear Sir, My number was changed from Vodafone to Airtel in March 2015. I require call and sms data of my vodafone number in the month of November, 2014. Important conversations I has during the month regarding my employment. I require phone numbers, which I have missed with me. Please answer me how can I get my vodafone Call and sms data for the month of November, 2014?? Pl note: My number was changed from vodafone to airtel in March 2015