As you have applied for Delhi Police Constable Written Exam, so here I am telling require info :

Key dates
Delhi Police Constable Written Exam Date → 07 to 10 December, 2017 Delhi Police Constable Physical (PET & PMT) Date → 18 March

Exam Syllabus : Delhi Police Constable Syllabus is given below :-

Reasoning :
Questions will be asked from analogies, similarities and differences, spatial visualization, spatial orientation, problem solving, analysis, judgment, decision making, visual memory, discrimination, observation, relationship concepts, arithmetic reasoning, verbal and figure classification, arithmetical number series, non-verbal series, coding and decoding, statement conclusion, syllogistic reasoning.

General Knowledge/Current Affairs :
Questions are designed to test the ability of the candidate’s general awareness of the environment around him and its application to society. Questions are also designed to test knowledge of current events and of such matters of everyday observation and experience in their scientific aspect as may be expected of an educated person. The test will also include questions relating to India and its neighboring countries especially pertaining to History, Culture, Geography, Economic Scene, General policy and scientific research.

Numerical Ability :
This paper will include questions on problems relating to Number Systems, Computation of Whole Numbers, Decimals and Fractions and relationship between Numbers, Fundamental arithmetical operations, Percentages, Ratio and Proportion, Averages, Interest, Profit and Loss, Discount, Mensuration, Time and Distance, Ratio and Time, Time and Work, etc.