BD Police Sergeant Written study guide
BD Police Sergeant Written · Work through your exam, one topic at a time.
The Sergeant (Written) Examination is a departmental promotion gateway for members of the Bangladesh Police who aspire to move from the constable or equivalent ranks into the sergeant cadre. It is a selection instrument, not a recruitment drive: candidates are already serving personnel, and the written paper measures whether they can reason in Bangla and English, handle arithmetic and mental ability under time pressure, and speak credibly about the law, the Constitution, police service rules, criminal procedure, geography and disaster response, and basic cyber awareness. The BD Police Sergeant Written study guide has 10 sections and about 3,275 words.
01Bangla Language and Literature
The Bangla section tests grammar (ব্যাকরণ), vocabulary, idioms (বাগধারা), spelling, sentence correction, and familiarity with major writers and periods. For grammar, master সন্ধি (vowel and consonant joins), সমাস (compound types such as দ্বন্দ্ব, কর্মধারয়, বহুব্রীহি, দ্বিগু), কারক ও বিভক্তি, বচন ও লিঙ্গ, ক্রিয়ার কাল ও ভাব, and শব্দের শ্রেণিবিভাগ (তৎসম, তদ্ভব, দেশি, বিদেশি).
292 words, about 1 min02English Language and Literature
The paper typically tests parts of speech, tense and aspect, subject-verb agreement, articles and prepositions, voice, narration (direct/indirect), conditional sentences, degrees of comparison, and correction of common errors. Learn the rules you can apply mechanically: singular subjects take singular verbs; collective nouns may take singular or plural verbs depending on emphasis; ‘none’ and ‘each’ are usually singular; ‘since’ pairs with perfect tenses; ‘hardly…when’ and ‘no sooner…than’ are fixed pairs.
298 words, about 1 min03General Mathematics and Mental Ability
Expect percentage, profit and loss, ratio and proportion, average, simple and compound interest, time-speed-distance, time and work, and mixtures. Learn the standard formulas and, more importantly, the shortcut relations: profit percent is always on cost price unless stated; successive percentage changes combine as a + b + ab/100; average speed for equal distances is the harmonic mean 2xy/(x+y), not the simple average.
282 words, about 1 min04General Knowledge and Current Affairs
General knowledge covers international organisations and their headquarters, capitals and currencies, national symbols, major awards (Nobel, Ekushey Padak, Independence Award), sports, science facts, and important days. Current affairs focus on recent national and international events, appointments, summits, treaties, and Bangladesh’s development milestones.
271 words, about 1 min05Bangladesh Studies
Bangladesh Studies covers the country’s administrative structure, population and demography, economy, education, health, culture, and development indicators. Know the divisions and their headquarters, the number of districts and upazilas, the structure of local government (union parishad, upazila parishad, city corporation), and the main national institutions such as the Bangladesh Bank, the Planning Commission, and the Public Service Commission.
283 words, about 1 min06History and the Liberation War
Build a firm chronology: the British period and the 1857 uprising, the Partition of 1947, the Language Movement of 1952, the United Front of 1954, the 1966 Six-Point Movement, the 1969 Mass Uprising, the 1970 election, the non-cooperation movement of March 1971, the declaration of independence, the formation of the Mujibnagar government, and the surrender on 16 December 1971. Know the sectors of the Liberation War, the role of the Mukti Bahini, the significance of 7 March and 26 March, the contributions of the Indian allied forces, and the structure of the Mujibnagar government with its acting president and prime minister.
281 words, about 1 min07Geography
Know Bangladesh’s location, boundaries, area, coastline, and the three main rivers systems - the Padma, Meghna, and Jamuna - and their tributaries. Understand the physiographic divisions: the Barind and Madhupur tracts, the flood plains, the coastal belt, and the Chittagong Hill Tracts.
260 words, about 1 min08Environment and Disaster Management
Understand ecosystems, biodiversity, deforestation, air and water pollution, climate change, greenhouse gases, ozone depletion, and sustainable development. Know Bangladesh’s environmental institutions and laws, the Ramsar wetland sites, and the importance of the Sundarbans as a carbon sink and cyclone barrier.
249 words, about 1 min09Constitution, Law, and Citizens’ Rights
The Constitution of Bangladesh, adopted in 1972, establishes a unitary parliamentary democracy. Know its main parts: fundamental principles of state policy, fundamental rights, the structure of government, and the independence of the judiciary.
267 words, about 1 min10Police Administration, Discipline, and Service Rules
Understand the police organisation: the Police Headquarters, ranges, metropolitan police, district police, and investigation centres, and the separation between investigation and law-and-order duties. Know the rank structure from constable to Inspector General, and the role of the Police Reform and the disciplinary authorities.
792 words, about 4 min