Do pakistan and bangladesh experience flooding in coastal areas from cyclones

The Islamic Republic of Pakistan has occasional problems with coastal flooding's by the cyclones but it is relatively rare. On the other side, the People's Republic of Bangladesh experiences annual flooding's by the cyclones, they cause lots of problems and casualties. The countries relief is a big disadvantage because the coastal region, as well as towards the inland, the relief is dominated by lowlands, thus the water can freely flood a very big prat of the country.

Answer primary waves;