Those are some insanely cheap prices for 1.5GB a day! I pay $40 for 1GB a month here in the United States. How is this even possible? Are the service providers here really taking in such a fat margin?
Speaking for Pakistan with somewhat higher rates, I think there are a couple of reasons.
1. Actual competition between providers, rather than implicit collusion.
2. Much higher population density across most of the country.
3. Interestingly, lack of rule of law, which means the whole subscribe-to-a-cell-phone-package that is actually out of your budget but the only option available doesn't work here. People will just run away with the phone. A vast majority of people buy a phone separately and pay upfront for it, and choose a connection provider of their choice. And jump providers whenever they see someone with a better price.
1. Actual competition between providers, rather than implicit collusion.
2. Much higher population density across most of the country.
3. Interestingly, lack of rule of law, which means the whole subscribe-to-a-cell-phone-package that is actually out of your budget but the only option available doesn't work here. People will just run away with the phone. A vast majority of people buy a phone separately and pay upfront for it, and choose a connection provider of their choice. And jump providers whenever they see someone with a better price.