Gandhi Special Tubes (GST) reported a robust Q4FY18 performance with net sales for the quarter coming in at | 28 crore, up 29% YoY EBITDA in Q4FY18 was at | 8.7 crore with corresponding EBITDA margins at 30.9%, down 360 bps. Drop in margins was primarily tracking one-time other expenses that included buy-back expense and CSR expense, adjusting for which margins came in at 36.4% PAT in Q4FY18 was at | 6.7 crore, down 4.3% YoY For FY18, net sales were at | 113.9 crore, up 20.8% YoY, EBITDA...