Geography
Physical geography
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. Learn the Sundarbans, the haors of the north-east, and the chars of the braided rivers.
Climate and world geography
Expect monsoon climate, seasons, rainfall patterns, and the tropical cyclone belt. For world geography, know continents, oceans, major mountain ranges, deserts, straits, and the largest countries by area and population.
Traps
Questions swap the Jamuna and the Padma, confuse the Sundarbans with other mangrove areas, or place the Chittagong Hill Tracts in the wrong physiographic region. Longitude and latitude values are often shifted; remember Bangladesh lies roughly between 20°34′ and 26°38′ north latitude and 88°01′ and 92°41′ east longitude.
Rule of thumb
For river questions, remember that the Brahmaputra becomes the Jamuna inside Bangladesh and the combined Padma and Meghna form the estuary; naming the river at the right stage prevents errors.
Worked example
A question asks which river the Brahmaputra is called after entering Bangladesh. Upstream it is the Brahmaputra, but within Bangladesh it is the Jamuna, and after joining the Padma it flows as the Padma to the Meghna estuary. Selecting ‘Padma’ confuses the stage.