Kerala Police Constable study materials
Kerala Police Constable study resources

Kerala Police Constable cheat sheet

Kerala Police Constable · Keep the key ideas within reach.

Quick reference

General Knowledge and Current Affairs

  • Kerala has 14 districts; the newest is Kasaragod's split-era arrangement - note that Malappuram was formed in 1969 and Pathanamthitta in 1982.

  • Kerala's Legislative Assembly has 140 seats; the state sends 20 members to the Lok Sabha and 9 to the Rajya Sabha.

  • Thiruvananthapuram is the state capital; the High Court of Kerala sits there and has jurisdiction over Kerala and Lakshadweep.

  • Kerala formed on 1 November 1956 under the States Reorganisation Act, merging Travancore-Cochin with Malabar and Kasargod taluk.

  • India's spaceport is at Sriharikota (Satish Dhawan Space Centre); ISRO's headquarters is in Bengaluru.

  • Current affairs anchors: track Kerala's annual budget (presented in February), the CPI/CPI(M) coalition dynamics, and the Kerala Police's annual crime review.

  • Kerala's literacy rate is about 94 per cent (2011 Census), the highest among Indian states; sex ratio about 1084 females per 1000 males.

  • National symbols: peacock (bird), tiger (animal), lotus (flower), Ganga (river); Kerala's state bird is the hornbill, state animal the elephant, state tree the coconut palm.

Quick reference

Kerala History, Culture and Renaissance

  • Sree Narayana Guru (1856-1928) founded the SNDP Yogam in 1903 and gave the message 'One caste, one religion, one God for man' at the 1913 Advaita Ashram, Aluva.

  • Chattampi Swamikal (1853-1924) championed the Nadar community and wrote 'Advaita Chintha Padhati'; his samadhi is at Panmana.

  • Ayyankali (1863-1941) led the Villuvandi Samaram (1893) and the Kallumala agitation (1915) for Dalit rights; he founded the Sadhu Jana Paripalana Sangham in 1907.

  • Sahodaran Ayyappan organised the Misrabhojanam (inter-dining) at Cherai in 1917 and founded the Sahodara Sangham.

  • Vakkom Moulavi pioneered Muslim social reform and founded the newspaper 'Swadeshabhimani' in 1905.

  • The Temple Entry Proclamation was issued by Chithira Thirunal Balarama Varma of Travancore on 12 November 1936.

  • Kerala's classical art forms: Kathakali (dance-drama), Mohiniyattam (female solo), Koodiyattam (Sanskrit theatre, UNESCO-recognised), Theyyam (ritual art of north Malabar), Thullal (Kunchan Nambiar).

  • Onam commemorates Mahabali's return; the 10-day festival centres on Thiruvonam, with Pookalam, Onasadya and Vallamkali.

Quick reference

Indian History, Freedom Struggle and Constitution

  • The Indian National Congress was founded in 1885 in Bombay; W.C. Bonnerjee was its first president and A.O. Hume its founder-organiser.

  • The partition of Bengal (1905) triggered the Swadeshi Movement; it was annulled in 1911.

  • Gandhi's movements: Champaran (1917), Kheda and Ahmedabad (1918), Non-Cooperation (1920), Salt Satyagraha/Dandi (12 March 1930), Quit India (8 August 1942).

  • The Jallianwala Bagh massacre occurred on 13 April 1919 at Amritsar under General Dyer.

  • The Constitution was adopted on 26 November 1949 and came into force on 26 January 1950; Dr B.R. Ambedkar chaired the Drafting Committee.

  • Fundamental Rights are in Part III (Articles 12-35); Directive Principles in Part IV (Articles 36-51); Fundamental Duties in Article 51A (added by the 42nd Amendment, 1976).

  • The President is elected by an electoral college under Article 54; the term is five years; impeachment is under Article 61.

  • Article 356 covers President's Rule; Article 352 national emergency; Article 360 financial emergency.

Quick reference

Geography and Environment

  • Kerala's highest peak is Anamudi (2,695 m) in Idukki; the longest river is the Periyar (244 km), followed by the Bharathapuzha (209 km).

  • The Western Ghats run parallel to Kerala's coast; the Palghat Gap is the major break in the range, about 30 km wide.

  • Kerala's climate is tropical monsoon: southwest monsoon (June-September) and northeast monsoon (October-November).

  • Vembanad is Kerala's largest lake; Ashtamudi is the second largest; both are Ramsar sites along with Sasthamkotta and Vellayani.

  • Silent Valley National Park (Palakkad) is a core area of the Nilgiri Biosphere Reserve; Eravikulam hosts the Nilgiri tahr.

  • Soil erosion, laterite formation and backwater salinity are key Kerala environmental issues; the 'Kuttanad below sea level farming' is a Globally Important Agricultural Heritage System.

  • National environmental statutes: Wildlife Protection Act 1972, Water Act 1974, Forest Conservation Act 1980, Air Act 1981, Environment Protection Act 1986.

  • The Kyoto Protocol (1997) and Paris Agreement (2015) address greenhouse gas reduction; the UNFCCC is the parent convention (1992).

Quick reference

General Science

  • SI units: force newton (N), pressure pascal (Pa), energy joule (J), power watt (W), frequency hertz (Hz).

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

  • Ohm's law: V = IR; electrical power P = VI = I²R; resistors in series add, in parallel reciprocals add.

  • Photosynthesis: 6CO₂ + 6H₂O + light → C₆H₁₂O₆ + 6O₂, occurring in chloroplasts with chlorophyll.

  • Human blood groups: A, B, AB, O; O negative is the universal donor, AB positive the universal recipient.

  • pH scale 0-14; below 7 acidic, above 7 basic; litmus turns red in acid and blue in base.

  • Vitamins: A (retinol, night blindness), B1 (thiamine, beriberi), C (ascorbic acid, scurvy), D (calciferol, rickets), K (clotting).

  • The speed of light in vacuum is about 3 × 10⁸ m/s; sound travels about 343 m/s in air at 20 °C.

Quick reference

Mathematics (Arithmetic and Mensuration)

  • Percentage change = (new − old)/old × 100; successive percentage changes a and b combine as a + b + ab/100.

  • Simple interest = PTR/100; compound amount = P(1 + R/100)^T; for half-yearly compounding use R/2 and 2T.

  • Profit percentage = (SP − CP)/CP × 100; discount is calculated on marked price, profit on cost price.

  • Time-speed-distance: distance = speed × time; to convert km/h to m/s multiply by 5/18.

  • Average = sum of terms / number of terms; for consecutive numbers the average is the middle term.

  • Mensuration: area of circle = πr², circumference = 2πr; triangle area = ½ × base × height; Heron's formula √(s(s−a)(s−b)(s−c)).

  • Volume: cylinder = πr²h; cone = ⅓πr²h; sphere = 4/3πr³; cuboid = lbh. Surface area of sphere = 4πr²; curved surface of cylinder = 2πrh.

  • Ratio and proportion: if a:b = c:d then ad = bc; work problems use 1/(days) as the rate and add rates for joint work.

Quick reference

Mental Ability, Reasoning and Logical Analysis

  • Number series: check differences, then ratios, then alternating or square/cube patterns before assuming a rule.

  • Coding-decoding: map letter positions A=1 … Z=26; reverse alphabet position = 27 − position.

  • Blood relations: draw a family tree; 'mother's brother' = maternal uncle; 'father's sister's son' = cousin.

  • Direction sense: net displacement uses Pythagoras when movements are perpendicular; track facing direction separately from movement.

  • Syllogism: 'All A are B' does not imply 'All B are A'; only conclusions that hold in every Venn diagram are valid.

  • Odd-one-out: test for shared property (prime, square, divisible by n, all vowels) rather than surface similarity.

  • Calendar: a normal year shifts the day by 1, a leap year by 2; 100 years shift by 5, 400 years by 0.

  • Clock: angle between hands = |30H − 5.5M| degrees; hands coincide 11 times in 12 hours.

Quick reference

English Language

  • Articles: 'a' before consonant sounds, 'an' before vowel sounds (an hour, a university); 'the' for specific or unique referents.

  • Subject-verb agreement: singular subject takes singular verb; 'each, every, either, neither' are singular; 'news, mathematics' are singular.

  • Tenses: present perfect (has/have + past participle) for past action with present relevance; past perfect for the earlier of two past actions.

  • Active to passive: object becomes subject, verb becomes be + past participle, agent introduced by 'by'.

  • Prepositions: 'since' with a point of time, 'for' with a duration; 'between' for two, 'among' for more than two.

  • Idioms: 'once in a blue moon' = very rarely; 'to let the cat out of the bag' = to reveal a secret; 'a bolt from the blue' = a sudden shock.

  • Synonyms/antonyms: use word roots - 'bene' good, 'mal' bad, 'anti' against, 'pre' before - to infer unfamiliar words.

  • Direct to indirect speech: change pronouns to the reporter's perspective and shift tense back one step when the reporting verb is past.

Quick reference

Malayalam Language

  • മലയാള അക്ഷരമാലയിൽ 15 സ്വരങ്ങളും 41 വ്യഞ്ജനങ്ങളും ഉൾപ്പെടുന്നു; ആകെ 56 അക്ഷരങ്ങൾ.

  • സ്വരങ്ങൾ: അ, ആ, ഇ, ഈ, ഉ, ഊ, ഋ, എ, ഏ, ഐ, ഒ, ഓ, ഔ, ഐ, ഔ - ഹ്രസ്വ-ദീർഘ ഭേദം ശ്രദ്ധിക്കുക.

  • സന്ധി: സ്വരസന്ധി (അ + ഇ = എ), വ്യഞ്ജനസന്ധി, വിസർഗസന്ധി - ഉദാ: 'കവി + ഇന്ദ്രൻ = കവീന്ദ്രൻ'.

  • സമാസം: തത്പുരുഷൻ, ബഹുവ്രീഹി, ദ്വന്ദൻ, അവ്യയീഭാവൻ, കർമ്മധാരയൻ - അർഥഭേദം പരിശോധിച്ച് തരം തിരിക്കുക.

  • പര്യായപദങ്ങൾ: സൂര്യൻ - ഭാസ്കരൻ, രവി, ആദിത്യൻ; ഭൂമി - ധരണി, പൃഥ്വി, വസുന്ധര.

  • വിപരീതപദങ്ങൾ: ഉയർച്ച × താഴ്ച, ആദി × അന്തം, ധർമ്മം × അധർമ്മം.

  • ശൈലികൾ: 'കൈയും കണക്കും' = കൃത്യത; 'മുഖം കാണിക്കുക' = നാണം കെടുക; 'തലയിൽ കുത്തുക' = ബുദ്ധിമുട്ടിക്കുക.

  • വാക്യശുദ്ധി: കർത്തൃ-ക്രിയ പൊരുത്തം, വചനപ്പൊരുത്തം, കാലപ്പൊരുത്തം എന്നിവ പരിശോധിക്കുക.

Quick reference

Information Technology and Computer Awareness

  • Computer generations: 1st vacuum tubes, 2nd transistors, 3rd integrated circuits, 4th microprocessors, 5th AI/ULSI.

  • Memory hierarchy by size/speed: registers < cache < RAM < secondary storage; 1 KB = 1024 bytes, 1 MB = 1024 KB.

  • Input devices: keyboard, mouse, scanner, microphone; output: monitor, printer, speaker, plotter.

  • OS functions: process management, memory management, file system, device I/O; examples Windows, Linux, macOS, Android.

  • Shortcuts: Ctrl+C copy, Ctrl+V paste, Ctrl+X cut, Ctrl+Z undo, Ctrl+S save, Ctrl+P print, Alt+F4 close window.

  • Internet basics: IP address identifies a device; DNS resolves domain names to IP; HTTP/HTTPS are web protocols; URL has scheme, host and path.

  • Cyber law in India: Information Technology Act 2000 (amended 2008); Section 66C identity theft, 66D cheating by impersonation, 67 obscene material.

  • Malware types: virus (needs host), worm (self-replicating), trojan (disguised), ransomware (encrypts and demands payment), phishing (fraudulent messages).

Quick reference

Ethics and Human Rights

  • Integrity means consistency between stated values and action; probity is honesty in handling public money and resources.

  • Conflict of interest arises when personal interest could influence official duty; the rule is to disclose and recuse.

  • Police ethics core values: impartiality, fairness, respect for human dignity, accountability, and lawful use of minimum force.

  • The Universal Declaration of Human Rights was adopted by the UN General Assembly on 10 December 1948; 10 December is Human Rights Day.

  • Fundamental Rights (Part III) are enforceable through writs under Article 32 (Supreme Court) and Article 226 (High Court).

  • The National Human Rights Commission was constituted in 1993 under the Protection of Human Rights Act 1993; a State Human Rights Commission is constituted under the same Act.

  • RTI Act 2005 gives citizens the right to information from public authorities within 30 days, subject to exemptions in Section 8.

  • Corruption offences are covered by the Prevention of Corruption Act 1988; the Lokpal and Lokayuktas Act 2013 provides ombudsman mechanisms.

Quick reference

Police-Related Law Awareness

  • The Bharatiya Nyaya Sanhita 2023 replaced the Indian Penal Code 1860, effective 1 July 2024; the Bharatiya Nagarik Suraksha Sanhita replaced the CrPC and the Bharatiya Sakshya Adhiniyam replaced the Evidence Act.

  • Cognizable offence: police may register a case and investigate without a magistrate's order; non-cognizable offences require magistrate's permission.

  • FIR is registered under Section 173 of the BNSS (earlier Section 154 CrPC); a zero FIR can be filed at any station regardless of jurisdiction.

  • Arrest rules: a person arrested must be informed of the grounds, allowed to consult a lawyer, and produced before a magistrate within 24 hours (Article 22).

  • D.K. Basu v. State of West Bengal (1997) laid down arrest safeguards including a memo of arrest, medical examination and intimation to a friend or relative.

  • The Kerala Police Act 2011 governs the state police; the state police headquarters is at Thiruvananthapuram and the force is headed by the Director General of Police.

  • POCSO Act 2012 protects children from sexual offences; the Juvenile Justice Act 2015 deals with children in conflict with law.

  • The NDPS Act 1985 covers drug offences; the Arms Act 1959 regulates firearms; the Motor Vehicles Act 1988 governs traffic offences.