India had never won a Test series in South Africa until 2021-2022, when they finally won 2-1. Prior to that, India had won series in England (2007, 2014), New Zealand (1968, 1976, 2020), and West Indies (multiple times), making South Africa the only major cricket nation where India had never secured a series win at their home. The correct answer is South Africa. England is incorrect as India has won series there. New Zealand is incorrect as India has won multiple series there. West Indies is incorrect as India has won several series in the Caribbean.