GIFT City — short for Gujarat International Finance Tec-City — is a planned business district near Gandhinagar. The financial activity that interests outbound investors happens inside a smaller perimeter: the IFSC, which is treated as offshore for regulatory and tax purposes even though it sits on Indian soil.
Three things are stacked here. The SEZ provides the physical and customs perimeter. The IFSC provides the offshore financial regulatory regime. And IFSCA — the International Financial Services Centres Authority — is the unified regulator that replaced the patchwork of RBI, SEBI, IRDAI and PFRDA roles you would otherwise navigate on the mainland.