Chennai-based public sector lender Indian Bank on Tuesday reported its fourth quarter results with its net profit growing three times to Rs 319.70 crore as against Rs 93.62 crore in the corresponding period last fiscal, riding on a 22% increase in net interest income. The bank has also announced a follow-on public offer (FPO) to bring down the government holding to below 75% from the current 82%, as required by the market regulator.The bank plans to sell 4.75 crore equity shares as part of the FPO, and the money raised would be utilised to fuel the growth initiatives the bank is planning to undertake, after being in a “period of lull” for many quarters in the previous years, owing to asset quality issues.