The person, identified as Imran from Lahore, was apprehended in Lam area of Rajouri district, Defence spokesman Lt Col Manish Mehta said.
He was later handed over to police for further investigation.
Police said they are investigating the case and questioning Imran about his motive of crossing the LoC to enter into Indian side.
"Initially it seems that he might have accidently crossed over the LoC as no weapon was recovered from his posession," a police officer said.
"The Pakistan side today handed over own national who had purportedly crossed over on August 24 in Poonch. She has been identified as Shamim, a resident of Tuglu in Poonch," the Defence spokesman said.