Dear Team,
I want integrate moodle and vtigercrm .if any user registered on moodle then same details also save in vtigercrm how can i do this please help me
This is likely the wrong forum for this question, but...
The Moodle database is the key. I don't know vtigercrm, but if it can use Active Directory, then it can draw its data from the same sources as the Moodle, I would suggest. Of course, that means that your Moodle must also use the Active Directory to obtain its User list. How this is done, I have no idea, no-one lets me near enough to a server for me to get that bit worked out...
Active Directory is a very common way of authenticating to Moodle and it looks like there are ways of vTiger doing the same
http://adminberlin.de/vtiger-crm-6-active-directory-authentication/