Answer- A
The well-known Cumbum Panneer Thratchai, also called Cumbum grapes, grown in Tamil Nadu, have been awarded the Geographical Indication (GI) tag.
The Cumbum valley, often referred to as the 'Grapes City of South India,' is renowned for cultivating the Muscat Hamburg variety, locally known as Panneer Thratchai, which accounts for about 85% of the grape-growing areas in Tamil Nadu.