Spain's Overseas Indian community, estimated at approximately 67,592 by the Ministry of External Affairs (2025), traces its modern commercial roots to Sindhi trading families who settled the Canary Islands' duty-free ports after Partition, with the community later diversifying toward Barcelona, Malaga, and Madrid. Legal questions that reach back into India -- property, succession, taxation -- apply the same underlying Indian law regardless of country of residence, alongside Spain-specific rules such as its notarial apostille process (distinct from the Ministry of Justice's electronic apostille system), the Civil Code's legitima forced-heirship rules combined with significant regional (foral) variations and the EU Succession Regulation's professio juris choice-of-law option, the India-Spain DTAA's 2024 MFN-driven rate cut on royalties and fees for technical services, Spain's absence from India's Section 44A reciprocating-territory list, and Spanish company law's lack of any director-residency requirement. Seven dedicated Spain guides are live below.