The sources said that Pakistan had been informed on the hotline by the Director General Military Operations Lt Gen Ranbir Singh about the soldier crossing over the Line of Control.
They said that such inadvertent crossing by Army and civilians was not unusual on either side and they are returned through existing mechanisms.
They also said that report of killing of eight Indian Army personnel reported in sections of Pakistan media was completely false and baseless.
Pakistan's Dawn newspaper had quoted security sources as saying that Pakistan military had said it had captured an Indian soldier and killed eight others. Dawn later withdrew the story from its website.
The soldier was identified as Chandu Babulal Chohan, 22, from Maharashtra. Dawn said he had been shifted to an undisclosed location.
It said the soldier was caught after the Indian military fired across the Line of Control (LoC).
India on Thursday said that it had carried out "surgical strikes" on terrorist launch pads across the LoC, inflicting massive casualties. Pakistan has denied the surgical strikes ever took place.