The correct answer is India.
India has the highest GST tax slab at 28%. This tax slab applies to goods and services that are considered to be luxury items. Some examples of goods and services that fall under this tax slab include:
- Cars
- Jewelry
- Alcohol
- Tobacco
The other countries listed in the question have lower GST tax slabs. For example, Greece has a maximum GST tax rate of 24%, China has a maximum GST tax rate of 17%, the USA has a maximum GST tax rate of 7%, and Australia has a maximum GST tax rate of 10%.
It is important to note that the GST tax rates can vary depending on the country and the type of goods or services being purchased. It is always best to check with the local government for the most up-to-date information on GST tax rates.