<ul data-eligibleForWebStory="false">Chris Griffith, the CEO of Vedanta's base-metals business, has resigned amid debt and short-seller concerns.Griffith left the mining firm recently where he oversaw key assets like zinc mines in South Africa.Viceroy Research, a short seller, released a report shorting the debt held by Vedanta Resources.Vedanta dismissed the report as 'selective misinformation and baseless allegations' and remains focused on business growth.