Shelan and her two children, Anas and Sana, were last seen at the Britannia Hotel, Stockport on Wednesday 5 April at 4:30pm.
It is believed the family are travelling across the UK.
Officers are becoming increasingly concerned about Shelan and the children and want to make sure they are safe and well.
Anyone with information about their whereabouts should contact police on 0161 856 9790 or 101.
