Dear All! Is it allowed to place other advertisements along with adsense? If yes then please name few campaigns. Thanks in Advance.
Yes you can, as long as the competing ads aren't confusingly similar to AdSense. I usually recommend using AdBrite/Kontera inlines in combination with AdSense. You can also use something like Chitika, which has ad formats that look different to AdSense. Be careful not to overload your site with too many ads.
This is written in adsense help, if you're serious about adsense (and you should be) then you should have adsense help pages in your bookmark and read everything about it! I don't understand how you can have such questions for forums. Read the source information and learn for yourself, you don't want your account to be banned.
As per as my opinion if you want long term business with Google Adsense then you should not take chances to any other advertisements with the google adsense. Rather you can place private advertising banner with the google adsense.