Mazumdar, 64, trained as a brewer before moving into a business developing enzymes used in food, which evolved into Bangalore biopharmaceutical firm Biocon. After it was sold to ICI in 1997 the Indian-born entrepreneur’s future husband, Glaswegian Shaw, arranged $2m finance to buy it back. The operation floated in 2004 and has risen strongly in the past year to be valued at £2.7bn, with the couple’s joint holding up from £593m to more than £1bn. They are company chairwoman and vice-chairman respectively.
Glasgow is wealthiest city