I have applied for the Combined Defence Services Examination (CDS) and need some best Study Materials for the preparation of this exam so can you please tell me from where I can Download the study materials of this exam free in the form of PDF file?

As you want here I am giving below UPSC combined defense service (CDS) exam Study Material/syllabus on your demand :

UPSC CDS Syllabus
English

Usage of words.


Grammar.

Vocabulary.

Antonyms & Synonyms.

Parts of Speech.

Direct & Indirect Speech.

Idioms & Phrases.

Active & Passive Voice etc.

General Knowledge

Indian History.


Indian Geography.

Current Events – National & International.

Indian Culture & Heritage.

Indian Economy.

General Polity.

Indian Constitution.

Science and Technology etc.

Elementary Mathematics

Arithmetic Ability.


Trigonometry.

Algebra.

Mensuration.

Geometry.

Statistics.

Numbers System

Graphical representation etc.