I think you have only heard the rumours... as far as Motorways are concerned that totally safe and no doubt in it. Moreover, the recommended travelling time from Hyderabad till sukkur is day time then there will be no issue of any such under discussion incident. well not sure about night. Moreover, it is recommended to take the stop over at famous restaurants. dont try to do adventurous stunts by stopping the car at road side dhabbas..
Well plz share the details and source of the news you have heard about those robberies and bla bla..