Dear swathi,
I dont know what makes me qualified to write this asking you to try once more.. As someone said its easy to quit than trying harder. you know at times things wont happen just as we planed or aimed but it doesn't mean we should change our plans accordingly.
I could find your mark competitive enough to get you through in next attempt. I know people, who even after repeated failures have made it possible in the end.
And you know my friend many the of shining COP holders of present has got great history of multiple failures. So no exam can measure your real potential, so march ahead with faith in you .....;you will find the fruit.