If someone studies smartly, i mean choosing subjects that give him more marks, keeping trends of questions in past papers and marks he will surely in the category of toppers. Smart Work with some hard work will change the luck

Only good luck exists if we work smart and hard, Faliure/bad luck is the result of dodgy way of studies

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wa tu izzu man tashaa, wa tu zillu man ta shaa....
No one rises suddenly in the world, not even the sun.