redundancy for track circuit

[PJW]

As I understand things, in India a driver cannot simply be "called past" a controlled signal at danger purely verbally by the signaller, but needs to be handed a physical written authority by a handsignalman. Getting the person to the remote site can cause long delays and perhaps it is this which justifies the diversity of axle counter and track circuits

Hi,Signalling Professional,
In INDIA Parrallel redundency is provided for Track circuits with axlecounters, track circuits fails ,if axlecounter clear in the failed track circuit area concerned signal can be taken off.