In its purest form, bingo involves a dealer calling out numbers as players check whether they have the winning combination. Players cross out numbers on cards and shout 'Bingo!' when they get the full combination. In casinos, it is played with cards which are discarded as the dealer calls out until a winner is found.
Afghanistan is also known as the Islamic Republic of Afghanistan. And it was once the leading producer of cannabis before the US took over. Despite the country following the Sharia Law that prohibits all forms of gambling. The authorities do little to track online gaming. And that explains why mobile online gambling is trending in the country.