Shares of Tata Steel climbed nearly 5 per cent in trade after the company said on Tuesday that its March quarter losses narrowed on a year-on-year basis. The steel major reported a consolidated loss of Rs 725 crore for March quarter compared with a loss of Rs 2,749 crore reported for the corresponding quarter of last financial year. Koushik Chatterjee, Tata Steel, speaks exclusively to ET **w on the same. He says he had implemented large part of action plan undertaken in 2015-16 in FY17.