How to Send Messages From Ghandar to Patleputra

In a day he's going to be able to cover 400 kilometers along the Uttarapath. So it'll take about 6 days, 6 6 and a half days for the messenger on an urgent end to travel from Kabul to Patleputra. You would have dedicated messengers,. couriers who and you would have these long highways, the Uttarapatha, the Daksin Patha, etc. And I would say that within the subcontinent from Ghandar to Patle putra  it would not take more than a week for information to flow from one extremity to another. It would typically be on horseback.