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Hello Chandran and welcome to XOOPS!
Your question is not specific enough to recommend a particular module, however XOOPS is definitely capavle of makinga a contact site: you may want to look at a link
HERE which is a helpdesk sort of module. Also look for friendfinder module. There is also a module called liase that allows custom built forms. Also look at this one
Formulaire Post back if you need more help
Richard