Hello Satheesh,
Please have a look in to the below trouble shooting links.
https://supportforums.cisco.com/document/55821/troubleshooting-cdr#Useful_LinksReferences.
http://www.cisco.com/c/en/us/td/docs/voice_ip_comm/cucm/service/8_0_1/admin/Serviceability/sacdrm.html#wp1117987
I hope these info may help you.