When essay is in slaughter, it becomes very difficult to pass the subject. I qualified css in 2011 and now in this year too and both times, essay was targeted by the authorities as most candidates flunked in it.
Remember just one thing: knowledge counts 60 per cent while language carries the 40 per cent weightage to pass this paper. Even if your language is normal but you give the ideas required, you can surely make it.

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Success usually comes to those who are too busy to be looking for it.