Brigadier Priyanka Fernando, the defence attache of the Sri Lankan diplomatic mission in the United Kingdom, will return to Colombo for consultations, the Army said.
Military sources also added that there would be no inquiry against the senior military officer.
Defence Attaché Brigadier Priyanka Fernando repeatedly mimed slitting throat gestures to hundreds of chanting Tamil protestors outside the High Commission premises in London in early February. The video of the incident went viral and the military officer's act elicited mixed reactions.
Issuing a statement on the matter, the Foreign Ministry said it had taken serious note of the incident and the services of the defence attache would be suspended immediately.
However, President Maithripala Sirisena intervened and reinstated the officer.