Tata Steel's board has given the nod for a groundbreaking merger with its subsidiary, Neelachal Ispat Nigam Limited, marking a pivotal moment in its growth strategy. Furthermore, the company is set to invest up to two billion dollars in its global subsidiary, T Steel Holdings. Shares of Tata Steel Limited closed 4.41% higher at ₹195.40 on the BSE on March 17, up ₹8.25.