Kuhn is leaving to return to South Africa for personal reasons, having run the India fund since its launch in December 2006.
The £21.8m Neptune India fund has returned 22.07 per cent in the past 12 months compared with an average fall of 14.27 per cent in the IMA specialist sector to the end of June 2009. Kuhn also managed the £13.1m Asia Pacific opportunities fund.
A Neptune spokesman says: “Shelley Kuhn has advised us of her intention to return to South Africa. In the interim, she is co-managing the Neptune India fund with Ewan Thompson.”
Thompson also manages the Neptune emerging markets fund.