The boy was apprehended by BSF personnel yesterday afternoon near the sector's Sovarwali check-post, senior BSF spokesperson (Punjab Frontier) R S Kataria said.
Razzak, a resident of Pakistan's Kasur district, had inadvertently crossed the International Border, he said.
The BSF contacted the Pakistan Rangers and the boy was handed over to them today, he said.
Kataria said the boy was the seventh person to be sent back to Pakistan on humanitarian grounds this year.