I am a student of MBA(e-Com) from Indore working on JSP and Servlet. I have learn two server side languages. I have heard about ROR (Ruby on Rails). I don't have much knowledge about it. I want to know about ROR concept . If any one have knowledge please reply..............

Point. Click. I want ints. I want String. Scaffold my framework. All done :)
Its easy. I don't like ruby though, and there used to be a lot of hype on it, but it seems to have quieted down a bit.
I'd suggest PHP, Perl, ASP.NET and CF for web based language. I'm expecting a bit of resurgence from CF since the advent of Flex, but it depends on the Flex vs Silverlight battle for CF versus C#. In either case, PHP wins :) (Brandoe would disagree ;))

Hope that helps! Just search up for some ruby on rails concept on google. You'll get better answers from people whom actually use the language (I don't).