Tata Steel has been shifting its focus to India, where demand is growing. : Tata Steel Ltd.’s Indian steel output rose to a record in its latest financial year thanks to its 2018 acquisition of Bhushan Steel Ltd. assets, potentially making Tata the country’s biggest producer. Production rose 35 per cent to 16.79 million tonnes in the year ended March 31, as Bhushan Steel added 4.2 million tonnes to output, the Mumbai-based company said in a statement Saturday.