there are many books, available in the market, which contain past papers of the compulsory subjects from 1971 to date so get that and try to solve one previous precis paper daily. read quality newspaper and enrich your vocabulary by noting down those words which are new to you, you'll get good marks. if you read newspaper with the eye of an observer, you'll excel in this paper.

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"Success is not final, failure is not fatal; it is the courage to continue that counts" (Winston Churchill)