31329-WAG9i-AJNI --- Anjanl RoyChowdhury spotted this Ajni speedstar resting at Dankuni yard on a quiet afternoon of 2nd Oct 2013. The WAG9i are variant with Insulated Gate Bipolar Transistor (IGBT) control. Two inverter assembled for each bogie, enabling per-axle isolation in the case of traction motor failure. If one traction motor fails, power supply to its axle gets cut-off leaving the loco with 5000hp on the other axles.