Mumbai’s afternoon sun has bathed Glenmark House in Andheri East in a warm glow as Glenn Saldanha, Chairman and Managing Director of Glenmark Pharmaceuticals Ltd, strides into a boardroom for an interview. Saldanha, who has led Glenmark for nearly 30 years, the last 12 as CMD, has had enough of the volatile business of making APIs or active pharmaceutical ingredients, taking debt for working capital and depending on best-selling brands with margins measured in teaspoons.