Congress, self-professedly, is clean party. They don't tolerate wrong persons. I am giving a link. Let them sort out which scam/scandals, relates to BJP, SP, BSP. TDP, CPM, Akali Dal, and so on. Congress have been in power in Centre and most of the States for much more time than all opposition parties put together remained in power. The link is "http://en.wikipedia.org/wiki/List_of_scandals_in_ India"
**** General public should not follow this link lest they should be disallusioned