This definitely worked to charge my iPhone in South Africa
Brown Adapter - South Africa & India Grounded
Grounded Adapter accepts plugs of US and other international varieties for fitting outlets in South Africa and some parts of India. This product does not convert electricity. Please note that this adapter may be used in other regions then listed above.
Note: Adapters do not convert power. Ensure that your electronics are rated 100-125 or 220-250 volts.