Step 1: Context.
During the post-independence era, India sought to establish diplomatic ties with countries around the world, including Latin American nations.
Step 2: Historical Fact.
In 1956, Mexico became the first Spanish-speaking (Hispanic) country to open its embassy in India, marking the beginning of strong Indo-Mexican diplomatic relations.
Step 3: Analysis of options.
- (1) España: Established diplomatic relations with India later.
- (2) Chile: Established its embassy in India after Mexico.
- (3) México: Correct — opened its embassy in 1956.
- (4) Argentina: Established relations later than Mexico.
Step 4: Conclusion.
Hence, México was the first Hispanic country to establish its embassy in India in 1956.