As you want to appear in Defence Research and Development Organization not Technical post and for the same applied Centre for Personal Management (CEPTAM ) exam, and here looking for its syllabus , so on your demand I am providing same :

DRDO CEPTAM Exam Pattern:

Written examination consists of Objective Type (MCQ).
The exam consists of 6 sections.
There are total numbers of 50 question will each section.
Time duration of this exam is 2 hours.
Each question carry 1 marks of this exam.

Syllabus:

(A) General Awareness:

History – India & World.
Cultural Heritage.
Geography – India & World.
About India.
Indian National Movement.
Economy.
Indian Constitution.
Indian Polity & Governance.
Science & Technology etc.

(B) General Intelligence:

Number Series.
Coding-Decoding.
Non-Verbal Series.
Analogy.
Alphabet Series.
Decision Making.
Number Ranking.
Clocks & Calendars.
Directions.
Cubes and Dice.
Arithmetical Reasoning.
Blood Relations.
Mirror Images.
Embedded Figures etc.

(C) Numerical Ability:

Number System.
Percentages.
Decimal & Fractions.
Profit and Loss.
Simplification.
Problems on Ages.
Time and Work.
Average.
Ratio and Proportions.
Time and Distance.
HCF & LCM.
Mixtures & Allegations.
Simple & Compound Interest.
Data Interpretation etc.

(D) General English:

Verb.
Error Correction.
Subject-Verb Agreement.
Articles.
Tenses.
Fill in the Blanks.
Adverb.
Vocabulary.
Sentence Rearrangement.
Unseen Passages.
Comprehension.
Grammar.
Idioms & Phrases.
Synonyms.
Antonyms etc.