:::::  Well, the Sarasvati river and Indo-Aryan migration are quite different topics, aren't they? As for the latter, many Indians believe that archaeology is the main discipline that has a say on it. But that is not true. Since "Indo-Aryan" means Sanskrit speakers, it is first of all a question of linguistics. Somewhat shamefully, Indians are no good at linguistics ("shamefully" because linguistics originates with Panini). So, their conclusions are all wrong. Anyway, this issue has been debated to death, and we had an RfC last year, which settled the issue once for all as far as Wikipedia is concerned. Unless there is some new evidence that overturns the current state of knowledge, nobody at Wikipedia wants to revisit that issue. But I will check to see if the current wording is right. Cheers,