Indian Railways: In an important step to avoid train collisions, Railway Board Chairman Satish Kumar has written to the general managers of all 17 zones asking them to monitor technical reports generated by a device called data logger on a daily basis. Indian Railways: In an important step to avoid train collisions, Railway Board Chairman Satish Kumar has written to the general managers of all 17 zones asking them to monitor technical reports generated by a device called data logger on a daily basis. Zee News :Business