Biocon's billionaire Executive Chairperson Kiran Mazumdar-Shaw took to X to condole the demise of business icon Ratan Tata. Sharing an old picture with Ratan Tata, she wrote, "This is a picture I will cherish forever. Such a great man and a great mind. Blessed to have known him. Om Shanthi." Ratan Tata passed away aged 86 on Wednesday.