On learning his mother had died, Gool Mohamed Khan returned to Afghanistan alone in 1873. In August 1874, he went to India and joined the British Regiment. While there he learned Urdu, Nagri and Mathematics. He resigned from the regiment and decided to go to British Guiana in search of a better life. He arrived in British Guiana on May 11, 1877. While waiting at the Depot to be drafted to work on the sugar plantation, he was fortuitously recruited to join the Police Force.