what knowledge are compulsory for this test ?

The topics for the written exam are as follows:
English Language: This section consists of Essay Writing, Reading Comprehension, Synonyms, Antonyms, Sentence Completion, Error based, etc.
Aptitude: This section consists of Data Interpretation, Profit and Loss, Ratio, Series, Critical Reasoning, verbal analogies, etc.
Reasoning : This section consists of like Puzzles, Syllogism, Blood relations, Data sufficiency & Pattern Recognition. 
Technical: This section consists of technical questions.
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