Billionaire investor Warren Buffett has given away record $6 billion (nearly ₹51,300 crore) of Berkshire Hathaway stock to charities in his biggest-ever annual donation. With this, the 94-year-old's total charitable donations have crossed over $60 billion (nearly ₹5.13 lakh crore). The donation included 12.36 million shares, which were given to the Gates Foundation and four family charities.