TS DEECET study materials
TS DEECET study resources

TS DEECET cheat sheet

TS DEECET · Keep the key ideas within reach.

Quick reference

General Knowledge and Current Affairs

  • Indian Constitution came into force on 26 January 1950; the Constituent Assembly adopted it on 26 November 1949 (celebrated as Constitution Day).

  • Fundamental Rights occupy Part III (Articles 12–35); the Right to Constitutional Remedies (Article 32) is called the heart and soul of the Constitution by Dr. B. R. Ambedkar.

  • National symbols: tiger (national animal), peacock (national bird), lotus (national flower), banyan (national tree), Ganga (national river), Mango (national fruit).

  • Indian Space Research Organisation is headquartered at Bengaluru; its launch vehicles include PSLV, GSLV and LVM3, and Chandrayaan-3 soft-landed near the lunar south pole in August 2023.

  • Telangana was formed on 2 June 2014 as the 29th state; its capital is Hyderabad, and the state animal is the spotted deer (chausingha) while the state bird is the Indian roller (pala pitta).

  • Current-affairs anchors to track: Union Budget presented on 1 February, Republic Day (26 January), Independence Day (15 August), and the Nobel Prizes announced each October.

  • United Nations was founded in 1945 with headquarters in New York; its principal organs include the General Assembly, Security Council, and International Court of Justice at The Hague.

  • Ramsar sites are wetlands of international importance; India has over 80, and examples include Chilika Lake, Keoladeo Ghana, and Loktak Lake.

Quick reference

Mathematics

  • Quadratic formula: for ax² + bx + c = 0 (a ≠ 0), x = [−b ± √(b² − 4ac)] / 2a; the discriminant D = b² − 4ac decides real (D ≥ 0) versus complex roots.

  • Sum and product of roots: α + β = −b/a and αβ = c/a; a quadratic with given roots is x² − (α + β)x + αβ = 0.

  • Arithmetic progression: nth term aₙ = a + (n − 1)d and sum Sₙ = (n/2)[2a + (n − 1)d]; geometric progression: aₙ = arⁿ⁻¹ and Sₙ = a(rⁿ − 1)/(r − 1) for r ≠ 1.

  • Trigonometric identities: sin²θ + cos²θ = 1, 1 + tan²θ = sec²θ, 1 + cot²θ = cosec²θ; standard values at 0°, 30°, 45°, 60°, 90° should be memorised.

  • Mensuration: area of circle = πr², circumference = 2πr; volume of cylinder = πr²h, cone = (1/3)πr²h, sphere = (4/3)πr³, and curved surface of a cone = πrl.

  • Probability of an event E is P(E) = favourable outcomes / total equally likely outcomes, with 0 ≤ P(E) ≤ 1 and P(not E) = 1 − P(E).

  • Distance between points (x₁,y₁) and (x₂,y₂) is √[(x₂−x₁)² + (y₂−y₁)²]; midpoint is ((x₁+x₂)/2, (y₁+y₂)/2); slope m = (y₂−y₁)/(x₂−x₁).

  • Pythagoras theorem: in a right triangle, hypotenuse² = sum of squares of the other two sides; common triples are 3-4-5, 5-12-13 and 8-15-17.

Quick reference

Science (Physical and Biological Sciences)

  • Newton's laws: an object stays at rest or in uniform motion unless acted on by a net force (F = ma); every action has an equal and opposite reaction.

  • Ohm's law: V = IR; electrical power P = VI = I²R = V²/R, and resistors in series add (R = R₁ + R₂) while parallel follows 1/R = 1/R₁ + 1/R₂.

  • pH scale runs 0–14: values below 7 are acidic, 7 is neutral, and above 7 is basic; litmus turns red in acid and blue in base.

  • Photosynthesis equation: 6CO₂ + 6H₂O → C₆H₁₂O₆ + 6O₂, occurring in chloroplasts with chlorophyll capturing light; oxygen is released as a by-product.

  • Human blood groups follow the ABO and Rh systems; O-negative is the universal donor for red cells and AB-positive the universal recipient.

  • Cell organelles: mitochondria are the powerhouse (ATP production), ribosomes synthesise protein, and the nucleus contains genetic material (DNA).

  • Human digestive order: mouth → oesophagus → stomach → small intestine → large intestine; bile from the liver emulsifies fats and is stored in the gall bladder.

  • Periodic table groups: alkali metals in Group 1, halogens in Group 17, noble gases in Group 18; atomic number equals the number of protons.

Quick reference

Social Studies (History, Geography, Civics, Economics)

  • Indian National Congress was founded in 1885 (A. O. Hume); the Indian National Movement milestones include the Partition of Bengal (1905), Jallianwala Bagh (1919), Dandi March (1930) and Quit India (1942).

  • Indian geography: the Tropic of Cancer passes through eight states; the Western Ghats and Eastern Ghats flank the Deccan Plateau, and the Godavari is the longest peninsular river.

  • Monsoon mechanism: the south-west monsoon (June–September) brings most of India's rainfall; the retreating north-east monsoon (October–December) supplies Tamil Nadu.

  • Indian Parliament has two houses: Rajya Sabha (Council of States, permanent house) and Lok Sabha (House of the People, directly elected); the President is the constitutional head.

  • Fundamental Duties are listed in Article 51A (Part IVA), added by the 42nd Amendment (1976) on the recommendation of the Swaran Singh Committee.

  • Economics basics: GDP measures the market value of final goods and services produced domestically in a year; inflation is a sustained rise in the general price level.

  • Types of unemployment include frictional, structural, cyclical and seasonal; disguised unemployment is common in Indian agriculture.

  • Directive Principles of State Policy (Part IV, Articles 36–51) are non-justiciable guidelines for governance, inspired by the Irish Constitution.

Quick reference

English Language

  • Subject-verb agreement: a singular subject takes a singular verb; phrases between subject and verb do not change number ("The box of pens is heavy").

  • Articles: use "a" before consonant sounds, "an" before vowel sounds, and "the" for specific or previously mentioned nouns and unique items.

  • Tenses: present perfect (has/have + past participle) links past action to the present; past perfect (had + past participle) marks the earlier of two past actions.

  • Active to passive: object becomes subject, verb becomes be + past participle, and the doer follows "by" ("She wrote the letter" → "The letter was written by her").

  • Prepositions of time: "in" for months, years and long periods; "on" for days and dates; "at" for exact times and festivals.

  • Commonly confused pairs: affect (verb) / effect (noun); principal (head, main) / principle (rule); its (possessive) / it's (it is).

  • Reported speech shifts tense back one step and changes pronouns and time words (now → then, today → that day, tomorrow → the next day).

  • Direct synonyms and antonyms are tested: choose the word closest in meaning to the stem, and the exact opposite for antonyms, checking part of speech first.

Quick reference

Telugu Language

  • తెలుగు అక్షరమాలలో 16 అచ్చులు (అ నుండి ఔ), 3 యోగవాహకాలు (ం, ః, ఁ) మరియు 36 హల్లులు ఉన్నాయి.

  • గుణింతాలు: హల్లుకు అచ్చు చేరినప్పుడు ఏర్పడే రూపాలు - క, కా, కి, కీ, కు, కూ, కె, కే, కై, కొ, కో, కౌ.

  • సంధులు: అచ్చు + అచ్చు కలిసేది సవర్ణదీర్ఘ సంధి; ఉదాహరణ రామ + ఆలయం = రామాలయం.

  • సమాసాలు: తత్పురుష, కర్మధారయ, ద్వంద్వ, ద్విగు, బహువ్రీహి - ఉదా. నల్లకలువ కర్మధారయ సమాసం.

  • ఛందస్సు: తెలుగు పద్యాలలో ఆటవెలది, తేటగీతి, కందం, శార్దూలం, మత్తేభం ప్రధాన వృత్తాలు; కందపద్యంలో నల్లగణాలు నియమిత స్థానాల్లో వస్తాయి.

  • అలంకారాలు: ఉపమాలంకారంలో ఉపమేయానికి ఉపమానంతో పోలిక ఉంటుంది; రూపకంలో ఉపమేయ, ఉపమానాలు అభేదంగా చెప్పబడతాయి.

  • ప్రసిద్ధ తెలుగు రచనలు: నన్నయ మహాభారతం ఆదిపర్వం, శ్రీనాథుడు శృంగార నైషధం, గురజాడ కన్యాశుల్కం, విశ్వనాథ రామాయణ కల్పవృక్షం.

  • క్రియలు: అసమాపక క్రియ (వాక్యాన్ని ముగించదు, ఉదా. వచ్చి) మరియు సమాపక క్రియ (వాక్యాన్ని ముగిస్తుంది, ఉదా. వచ్చాడు).