Nawaz, 15, was injured during the brutal attack on the school in Peshawar on December 16, 2014 by the Taliban gunmen.
His operation took place at the Queen Elizabeth Hospital and was reportedly 12-hour-long during which doctors treated his injured veins and installed steel plates in his body to support his back.
Read: Treatment abroad: Peshawar school attack victim to leave for Birmingham today
Nawaz was then shifted to an intensive care unit and doctors said he was out of danger.
A photo of Nawaz when he was at Lady Reading Hospital.
Earlier, Prime Minister Nawaz Sharif had approved Rs30.6 million for his treatment in the UK.
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