As you are looking for UPPSC Assistant Review Officer (ARO) exam syllabus so on your demand I am providing same for you :

General Studies:

History of India.
Indian National Movement
Current National and International Important Events
Indian Polity, Economy & Culture.
Population, Ecology and Urbanisation (in India Context)
Indian Agriculture, Commerce, and Trade.
World Geography and Geography and Natural Resources of India
General Intelligence.
Special Knowledge regarding Education, Culture, Agriculture, Industry Trade, Living & Social Traditions of Uttar Pradesh.
General Science.
Elementary Mathematics upto 10th Level.
Arithmetic.
Algebra.
Geometry.

General Hindi:

Synonyms.
Antonyms.
Sentence and Correction in framing.
Opposites.
One word for several words.
Same usage and same nature words
A Noun as Defined by an adjective & Adjectives.


General Hindi and Drafting:

Part-1 (Conventional)

The Heading of Given Passage, Precis and explanation of the underlined parts.

Precis in Tabular Form of any given Govt. Letter Correspondence.

Official / Demi-official letter.
Office Memo/Memo/Circular.
Communique/Annotation & Reports/Reminder.

Definition Vocabulary (Administrative and Commercial)

English to Hindi.
Hindi to English.
Idioms and Phrases Computer Knowledge.

Part-2 General Vocabulary (Objective Type)

Sentence and Correction in framing.
One word for several words.
A Noun as Defined by an adjective.
Same usage and same nature words.

Hindi Essay:

Literature and Cultures.
Social Field.
Political Field.
Science, Ecology, and Technology.
Economic Field.
Agriculture and Commerce.
National and International Events.
Natural Calamities – Earth Stumbling, Cyclone, Earthquake, Flood, Drought etc.
National department Plans