There is a type of map called "isokeraunic" which shows frequency of lightning strikes around the world. Additionally, as soil conductivity changes what is kno

There is a type of map called "isokeraunic" which shows frequency of lightning strikes around the world. Additionally, as soil conductivity changes what is known as the "step potential" being the voltage induced in the ground between your two feet. I am not sure of the particular case for Banglafdesh but these are the key factors. People in Zimbabwe who sleep on the ground which has an unfortunate mid range conductivity are also subject to a high incidence of lightning related deaths. I have seen in Indonesia Bangdung that on the mountain some houses are enclosed in virtual faraday cages of lightning conductors due to frequency of strikes.