Somewhat messy, but it does the job.
For one thing, since you're using Python 2, the input() expression is unnecessary, as it returns an evaluated expression. (edit: unless you intended on weeding out people who will write stuff like 3+2)
print " Enter Your Guess :"
guess=input()
guess=int(guess)
...can be stripped down to:
guess = int(raw_input("Enter your guess: "))
Finally, the last three lines are best unified into a code block such as this:
if __name__ == "__main__":
print title
description()
game()
So that it will call that variable and two functions only when run as a stand-alone script, rather than as a module.