Piling onto this thread for a similar predicament.
Due to a schedule change by the Indigo, what was supposed to be a 2hr 50 mins transit in SIN, has now become a 8hrs 5mins transit.
Routing being MEL - SIN - MAA.
Basically the flight they originally booked us (SIN - MAA) on has been shifted to an earlier time, hence the shift to the next available service which is 8 hrs later.
Any lounge visit compensation can be expected from Indigo for this ?