Tata Consultancy Services rose 12 positions from last year to rank number 46 on Kantar BrandZ's annual list of global brands. Rival Infosys debuted on the list, joining the top 100, ranking at number 64 on the widely followed ranking of the world's biggest brands every year. Accenture improved its ranking by one spot to place at number 26. Microsoft, Zara and IBM, however, lead the list on a new sustainability index that Kantar has started this year