<p>In 2017, Arif Naqvi and The Abraaj Group were on the brink of changing the world of private equity. Abraaj was a pioneer of impact investing, it had helped transform communities and companies across the world by financing healthcare, education and clean energy projects, and it was about to close a new fund worth $6 billion. But then it all came crashing down.<br>On 10 April 2019, after landing at London Heathrow, Naqvi was arrested on fraud ch...