I've come across these lines.... "Difference between keyword and keyphrase is that keyword should be only one word, whereas keyphrase can be more than one word. See Example below :: <meta name="keywords" content="Search, Engine, Optimization"> & <meta name="keyphrases" content="Searcg Engine Optimization"> " Any Expert Comments......
The keywords meta is of no practical use to the search engines and the keyphrases meta is an invention by someone with a sense of humor, like this one; <meta name="rank" content="position=1"> - Michael
Tarun, I agree with Michael. The "Keyphrase meta" is a complete nonsense. Use the keywords meta tag and put commas between the keyword phrases. Although the tag is not directly material to rankings performance it is useful when running alignment tests.
It was discussed here http://www.highrankings.com/forum/index.php?showtopic=21853 (Sorry! I don't know reference of other forum is good or not??? If it is not allowed in this forum then let me know, i will edit my post. Thanks..) Tarun take a look of it. Or u already have a look on it and posted here?