Odisha Police SI study materials
Odisha Police SI study resources

Odisha Police SI cheat sheet

Odisha Police SI · Keep the key ideas within reach.

Quick reference

General Knowledge and Current Affairs

  • Odisha has 30 districts; the state was renamed from Orissa to Odisha on 1 November 2011 by the Odisha (Alteration of Name) Act, 2011.

  • Odisha's Legislative Assembly has 147 seats and the state sends 21 members to the Lok Sabha and 10 to the Rajya Sabha.

  • Capital: Bhubaneswar; High Court: Orissa High Court at Cuttack (established 1948); state animal: Sambar deer; state bird: Indian roller (blue jay); state tree: Banyan; state flower: Ashoka.

  • Odisha's official language is Odia, a classical language since 2014; other recognised languages of the state include Ho, Santhali, and Odia script for tribal languages.

  • National institutes located in Odisha: IIT Bhubaneswar, NIT Rourkela, AIIMS Bhubaneswar, NISER Bhubaneswar, IIIT Bhubaneswar, and the Institute of Physics.

  • Key national current-affairs anchors: Budget presented on 1 February, Economic Survey before the Budget, NITI Aayog replaced the Planning Commission in 2015, and GST launched on 1 July 2017.

  • Odisha-specific schemes frequently asked: Biju Swasthya Kalyan Yojana, KALIA (Krushak Assistance for Livelihood and Income Augmentation), Odisha Millet Mission, and Mission Shakti for women's self-help groups.

  • Odisha's coastline is about 480 km along the Bay of Bengal, and Paradip is its major port; Dhamra is another deep-water port.

Quick reference

General Science

  • Newton's three laws: inertia (F = 0 means no change in motion), F = ma, and every action has an equal and opposite reaction.

  • Work = force × displacement in the direction of force; power = work/time; SI unit of power is the watt, and 1 horsepower ≈ 746 watts.

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

  • pH scale: below 7 acidic, 7 neutral, above 7 basic; litmus turns red in acid and blue in base; acid + base gives salt + water.

  • Human body: adult has 206 bones, 32 teeth, blood pH about 7.4; largest organ is skin; the liver produces bile and the pancreas produces insulin.

  • Photosynthesis: 6CO₂ + 6H₂O → C₆H₁₂O₆ + 6O₂ in the presence of chlorophyll and sunlight; occurs in chloroplasts.

  • Cell organelles: mitochondria are the powerhouse, ribosomes synthesise protein, lysosomes are suicidal bags, and the nucleus contains DNA.

  • Blood groups: A, B, AB, O with Rh factor; O negative is the universal donor and AB positive the universal recipient.

Quick reference

Indian and Odisha History

  • Kalinga War (c. 261 BCE) fought by Ashoka against Kalinga led to Ashoka's embrace of Buddhism; the rock edicts at Dhauli near Bhubaneswar record it.

  • Mahameghavahana king Kharavela (1st century BCE) of the Chedi dynasty is described in the Hathigumpha inscription at Udayagiri, Bhubaneswar.

  • The Bhauma-Kara, Somavamsi, Ganga, and Suryavamsi dynasties ruled Odisha; Anantavarman Chodaganga Deva built the Jagannath Temple at Puri in the 12th century.

  • Kapilendra Deva founded the Gajapati dynasty in 1434 CE; the Gajapati rulers patronised the Jagannath cult and expanded Odisha's territory.

  • Paika Rebellion of 1817 in Khurda under Bakshi Jagabandhu is regarded as an early armed uprising against British rule.

  • Odisha was separated from Bihar and became a separate province on 1 April 1936; the Utkal Sammilani (founded 1903) led the movement for a separate Odia-speaking province.

  • Indian national milestones: Indian National Congress founded 1885, Jallianwala Bagh 1919, Non-Cooperation 1920, Quit India 1942, Independence 15 August 1947.

  • Odisha merged with the Indian Union in 1949, and the princely states were integrated into the state in stages between 1948 and 1949.

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Geography

  • Odisha lies between roughly 17°49′N–22°34′N latitude and 81°27′E–87°29′E longitude; it borders West Bengal (north), Jharkhand (northwest), Chhattisgarh (west), and Andhra Pradesh (south).

  • Major rivers: Mahanadi (longest in Odisha), Brahmani, Baitarani, Subarnarekha, Budhabalanga, and Rushikulya; the Mahanadi delta is a major deltaic region.

  • Chilika Lake is Asia's largest brackish-water lagoon; the Hirakud Dam on the Mahanadi is one of the longest earthen dams in the world.

  • Highest peak in Odisha is Deomali in the Koraput district (Eastern Ghats); Similipal in Mayurbhanj is a biosphere reserve and tiger reserve.

  • Climate: tropical monsoon; the southwest monsoon (June–September) brings most rainfall; the state is prone to cyclones from the Bay of Bengal.

  • India's physical divisions: Himalayas, Indo-Gangetic Plain, Peninsular Plateau, Coastal Plains, and Islands; the Tropic of Cancer passes through 8 Indian states.

  • Soils: alluvial in coastal Odisha, red and laterite in the uplands, and black soil mainly in the western districts.

  • Ports and coast: Paradip, Dhamra, and Gopalpur are Odisha's ports; the Bay of Bengal lies to the east.

Quick reference

Polity

  • The Constitution of India came into force on 26 January 1950; it was adopted by the Constituent Assembly on 26 November 1949.

  • 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 the constitutional head (Article 52) and the Governor heads a state (Article 153); the Chief Minister heads the state executive.

  • The 73rd and 74th Constitutional Amendments (1992) gave constitutional status to Panchayati Raj and urban local bodies.

  • The Election Commission of India (Article 324) conducts elections; the Comptroller and Auditor General is under Article 148.

  • Odisha's Panchayati Raj has three tiers: Gram Panchayat, Panchayat Samiti (block), and Zilla Parishad (district).

  • Writs under Article 32 (Supreme Court) and Article 226 (High Court): habeas corpus, mandamus, prohibition, certiorari, and quo warranto.

  • Money Bill is defined in Article 110 and can be introduced only in the Lok Sabha with the President's recommendation.

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Economy

  • GDP = C + I + G + (X − M); nominal GDP uses current prices, real GDP uses constant prices.

  • Inflation measured by CPI (consumer) and WPI (wholesale); the RBI's Monetary Policy Committee targets CPI inflation at 4% with a ±2% band.

  • Repo rate is the rate at which the RBI lends to banks; reverse repo is the rate at which the RBI absorbs liquidity.

  • Odisha's economy is driven by mining (iron ore, bauxite, coal), steel, aluminium, agriculture (rice), and ports; the state is a leading producer of iron ore and bauxite.

  • Major Odisha industrial hubs: Rourkela (steel), Angul (coal and aluminium), Jharsuguda (aluminium), Paradip (port and refinery), and Kalinganagar (steel).

  • Budget deficits: fiscal deficit = total expenditure − total receipts excluding borrowings; revenue deficit = revenue expenditure − revenue receipts.

  • GST Council is chaired by the Union Finance Minister; GST has slabs of 5%, 12%, 18%, and 28%, with cess on some goods.

  • NITI Aayog prepares the SDG India Index; Odisha's Human Development Index and per capita income are below the national average.

Quick reference

Reasoning and Mental Ability

  • Number series: check differences, then ratios, then squares/cubes; alternating series often use two interleaved patterns.

  • Coding-decoding: apply the shift in both directions and check reversal of the alphabet (A↔Z, B↔Y); write the alphabet positions 1–26.

  • Blood relations: draw a family tree with gender symbols; 'maternal uncle' = mother's brother, 'paternal aunt' = father's sister.

  • Direction sense: draw the path on paper; net displacement uses Pythagoras when turns are 90°.

  • Syllogism: use Venn diagrams; 'All A are B' does not imply 'All B are A'; 'Some A are B' is reversible.

  • Seating arrangement: fix the reference person, then place others clockwise/anticlockwise; for rows, note left/right from the person's facing direction.

  • Calendar: a normal year shifts the day by 1 and a leap year by 2; a century has 5 odd days, 400 years have 0 odd days.

  • Clock: the minute hand moves 6° per minute and the hour hand 0.5° per minute; the hands coincide every 65 5/11 minutes.

Quick reference

Quantitative Aptitude and Mathematics

  • Percentage: x% of N = (x/100) × N; successive percentage change of a% then b% gives a + b + ab/100.

  • Profit and loss: profit% = (SP − CP)/CP × 100; discount% = (MP − SP)/MP × 100; SP = CP × (100 + profit%)/100.

  • Simple interest SI = PRT/100; compound interest CI = P(1 + R/100)^T − P; for 2 years CI − SI = P(R/100)².

  • Time, speed, distance: distance = speed × time; 1 km/h = 5/18 m/s; average speed = total distance / total time.

  • Time and work: if A does a job in x days and B in y days, together they take xy/(x + y) days.

  • Ratio and proportion: if a:b = c:d, then ad = bc; divide a quantity in ratio m:n as (m/(m+n)) × total and (n/(m+n)) × total.

  • Mensuration: area of circle = πr², circumference = 2πr; volume of cylinder = πr²h; volume of sphere = (4/3)πr³; area of triangle = ½ × base × height.

  • Average: average = sum of observations / number of observations; if each value increases by k, the average increases by k.

Quick reference

English Language

  • Subject-verb agreement: a singular subject takes a singular verb; 'one of the + plural noun' takes a singular verb (e.g., 'One of the boys is here').

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

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

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

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

  • Common error traps: 'discuss about' (wrong), 'return back' (wrong), 'more better' (wrong), 'each of the students has' (correct).

  • Synonyms and antonyms are tested with word families; idioms such as 'a blessing in disguise' and 'to let the cat out of the bag' appear frequently.

  • Reading comprehension: locate the main idea in the first or last sentence of a paragraph; answer only from the passage, not outside knowledge.

Quick reference

Odia Language

  • Odia script has 11 vowels (ସ୍ୱରବର୍ଣ୍ଣ) and 34 consonants (ବ୍ୟଞ୍ଜନବର୍ଣ୍ଣ); it is written left to right and is derived from the Kalinga script.

  • Odia is a classical language (declared 2014) and the official language of Odisha; its earliest inscription is the 10th-century Dhauli inscription in old Odia.

  • ସ୍ୱରବର୍ଣ୍ଣ: ଅ ଆ ଇ ଈ ଉ ଊ ଋ ୠ ଏ ଐ ଓ ଔ; ବ୍ୟଞ୍ଜନବର୍ଣ୍ଣ: କ ଖ ଗ ଘ ଙ ଚ ଛ ଜ ଝ ଞ ଟ ଠ ଡ ଢ ଣ ତ ଥ ଦ ଧ ନ ପ ଫ ବ ଭ ମ ଯ ର ଳ ଲ ୱ ଶ ଷ ସ ହ.

  • ଯୁକ୍ତାକ୍ଷର (conjunct consonants) form when two consonants join, e.g., କ୍ଷ, ଜ୍ଞ, ତ୍ର, ଶ୍ର; the ହଳନ୍ତ (୍) mark removes the inherent vowel.

  • ଓଡ଼ିଆ ବ୍ୟାକରଣ: ବିଶେଷ୍ୟ (noun), ବିଶେଷଣ (adjective), ସର୍ବନାମ (pronoun), କ୍ରିୟା (verb), ଅବ୍ୟୟ (indeclinable); କାରକ and ବିଭକ୍ତି govern case endings.

  • ସନ୍ଧି: ସ୍ୱରସନ୍ଧି, ବ୍ୟଞ୍ଜନସନ୍ଧି, ବିସର୍ଗସନ୍ଧି; e.g., ଦେବ + ଆଲୟ = ଦେବାଲୟ.

  • ସମାସ: ଦ୍ୱନ୍ଦ୍ୱ, ତତ୍ପୁରୁଷ, ବହୁବ୍ରୀହି, କର୍ମଧାରୟ, ଦ୍ୱିଗୁ, ଅବ୍ୟୟୀଭାବ; ଉପମା and ରୂପକ are common ଅଳଙ୍କାର.

  • ପ୍ରମୁଖ ଓଡ଼ିଆ ସାହିତ୍ୟିକ: ସାରଳା ଦାସ (ମହାଭାରତ), ଜଗନ୍ନାଥ ଦାସ (ଭାଗବତ), ବଳରାମ ଦାସ (ରାମାୟଣ), ଉପେନ୍ଦ୍ର ଭଞ୍ଜ, ଫକୀରମୋହନ ସେନାପତି, ଗୋପବନ୍ଧୁ ଦାସ, ରାଧାନାଥ ରାୟ.

Quick reference

Computer Knowledge

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

  • Memory units: 1 byte = 8 bits, 1 KB = 1024 bytes, 1 MB = 1024 KB, 1 GB = 1024 MB, 1 TB = 1024 GB.

  • CPU has three parts: arithmetic logic unit (ALU), control unit (CU), and registers; RAM is volatile and ROM is non-volatile.

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

  • Microsoft Office: Word (.docx), Excel (.xlsx), PowerPoint (.pptx); Excel formulas begin with '=' and SUM, AVERAGE, COUNT, IF are common functions.

  • Internet: IP address identifies a device, DNS converts domain names to IP addresses, HTTP/HTTPS transfer web pages, and email uses SMTP to send and POP3/IMAP to receive.

  • Programming languages: C, C++, Java, Python, and JavaScript; Python is interpreted and Java is compiled to bytecode run on the JVM.

  • Computer security: antivirus detects malware, a firewall filters network traffic, and phishing is a social-engineering attack that steals credentials.

Quick reference

Physical Efficiency and Measurement Standards

  • Odisha Police physical efficiency test typically includes a 1.6 km (1600 m) run, long jump, high jump, and shot put; qualifying standards differ by category and are notified in the official advertisement.

  • Height standards commonly notified for Odisha Police SI: general male candidates around 168 cm and female candidates around 155 cm, with relaxations for reserved categories as per the notification.

  • Chest measurement for male candidates is usually a minimum of 79 cm unexpanded with a minimum expansion of 5 cm; female candidates are exempt from chest measurement.

  • Running event scoring is time-based; candidates should train for negative splits and controlled breathing rather than an all-out sprint.

  • Long jump technique: approach run, take-off from one foot behind the board, land with both feet; a foul is called if the take-off foot crosses the board.

  • High jump uses the Fosbury flop or scissor technique; three consecutive failures at a height eliminate the jumper.

  • Shot put: the throw must be from the shoulder, within the circle, and land within the sector; stepping out of the circle before the implement lands is a foul.

  • Medical standards require normal vision, hearing, and no disqualifying condition; the final standards are those printed in the current official recruitment notification.