I think that there are four PRS server in Indian Railways
1) North zone - NDLS PRS
2) centrel zone - CSTM PRS
3) East zone - HWH PRS
4) south zone -...
more... Chennai PRS
North zone
Northern Railway, Northern centrel Railways , Northern Western railways
Central zone
Central railway , western Railway, western centrel Railways, konkern Railway
East zone
Eastern Railway, eastern central Railway , southern eastern Railway, Northern frontier railways
South zone
Southern Railways , south central , south western ,
Kya mene yahi information likha h
Pls update me ?