I've been toying around with Clojure since it was released in 2009. Coming from Java-land, once you've gotten used to the expressiveness and brevity of Clojure, Java seems like a poor cousin.
For learning Clojure, I would suggest trying to solve some (or indeed, many) problems at Project Euler.
I started learning Clojure with "Programming Clojure", an excellent book by Stuart Halloway. Its a little pricey, and the only indian-edition book available is "Practical Clojure" (which I haven't read yet).
My Project Euler icon:
and the solution repository in Github.