Governance in Punjab has been the biggest casualty in the Congress party's ''Game of Thrones'', the opposition AAP said on Saturday after Chief Minister Amarinder Singh resigned following months of a power tussle in the ruling party. In a video message, Aam Aadmi Party (AAP) spokesperson Raghav Chadha said the issues of Punjab have been put on the back burner amid a power struggle in the ruling party.