As much as I appreciate Bhutan's ideas around happiness and its style of sustainable development, I feel Bhutan being a tiny hilly country is what allows them to work. Add to that the gift of Hydroelectric power, which alone contributes 1/4th of government revenue, and was responsible for 14% of its GDP[1]. Its population is less than a million, where as even tier-3 towns in India have a couple of million people living there.

A large country, with a large population, has far fewer options other than supporting economic development at a scale.

[1]: https://thewire.in/world/south-asia/bhutan-hydropower-electr...