Hello Vindya Kumari,
Total time for exam is 180 mins and it contains Verbal and Logical Ability , Decision Making ,Quantitative Ability and Data Interpretation and General Knowledge (GK) questions and there is negative marks for very wrong answer i.e 0.25 and also 0.05 marks for very 8 unanswered questions.Below link gives the previous questions with answers ,you can download it.
Hope this helps you..
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