Sources said that the girl had gone to meet her online boyfriend who had also come to the Gurdwara from the Pakistani side.
Pakistan police have arrested four men from Lahore and Faisalabad in connection with the incident.
He also urged Navjot Sidhu to exercise caution in dealing with Pakistan.
The Pakistan Tehreek-e-Insaf government has claimed that the Kartarpur corridor was the initiative of Prime Minister Khan.
In reference to a historic 'blacklist' of some diaspora Sikhs over anti-India activities, the chief minister stressed that he was keen to 'start afresh' and that no such list remains in operation.
The Kartarpur Corridor was thrown open on November 9, in a rare and landmark people-to-people initiative between the two countries in the midst of their strained bilateral ties over Kashmir.
Sikhs and Hindus living in Pakistan have been exempted from this fee.
These should be acceptable since there was no requirement of visa to be stamped on the passport.
Mukyamantri Teerth Darshan Scheme, started by BJP govt in September 2012 is an ambitious pilgrimage scheme which facilitates state-sponsored tours to religious locations for elderly citizens.
Amid reports of confusion among pilgrims, he also urged both India and Pakistan to waive off passport condition for travel through Kartarpur Corridor and instead accept other forms of identity.