Chennai: Singapore-based private equity firm Quadria Capital will invest $1.5 billion in the healthcare sector in south and southeast Asian countries over the next three years. Of this, 50% will be invested in India.Sunil Thakur, partner and head South Asia at Quadria Capital said, the investments will be made across the healthcare segments such as hospitals, diagnostics, pharma, medical devices and healthcare financing. “We are evaluating 8-10 companies at any point of time across all the segments for investments and out of this, investments will be made in six or seven companies. In…