Investment to keep RoE benign; dropping coverage IDFC Bank's PAT came in at | 264.8 crore, higher than our estimate of | 173.2 crore, led by strong growth of 19.7% QoQ in NII. Growth in other income at | 212.8 crore; up 54.6% QoQ, supported the topline Operating expense declined 6% QoQ to | 276.8 crore. Increase in income coupled with a decline in opex has led to an improvement in cost income ratio at 39% in Q1FY17 compared to ~50% in Q4FY16 Asset quality has remained resilient with absolute GNPA remaining...