If you want individual student results, that's probably not going to be that simple: Data Protection legislation (even in India) requires that personal information like that should not be released except to the involved party - so you're going to have to figure out how to get and prove identity to each of the servers involved, and they are unlikely to use similar systems ...
Other than that, it's as Richard says:
Quote:
You need to write a web scraper to gather information from other websites. Alternatively check if these sites provide an API which allows you to read data directly.