what topics we should study regarding this exam

UGAT has English Language, Reasoning and General Intelligence, Numerical and Data Analysis, General Knowledge, Service Aptitude and Scientific Aptitude sections.

English Language: Synonyms and Antonyms, Active and Passive Voice, Direct and Indirect speech, Nouns, Verbs, Adjectives, Pronouns, Idioms and Phrases, Para jumbles, Spotting Error, Direct and Indirect Speech, Spelling test and Sentence improvement, Substitutions, Joining sentences, fill in the blanks

Reasoning and General Intelligence: Analytical and Logical reasoning, Puzzles and riddles, Data sufficiency, Inequality, Blood relations, Seating arrangements, Direct Based questions.

Numerical and Data analysis: Problems on numbers and series, Linear questions and quadratic equations, Matrices, Time and work, Pipes and Cistern, Time, distance and speed, Boats and Streams, Problems on trains, Profit and loss, Ratio and proportion, Simple and Compound interest, Ratio and Proportion, Simple and Compound interest, Percentages, mixtures and alligations, ages, average, Simplification and approximation, mensuration, indices and surds, probability, permutation and combination, data interpreation.

General Knowledge: Current affairs, General Knowledge, Indian Politics, Indian Economy, Famous books and authors, Foreign relations, Business related topics