Digboi in Assam is historically important as India's
AFirst coalfield opened
BFirst atomic power plant
CFirst hydro-electric project
DFirst oil well site
Answer & Solution
Correct answer: D. First oil well site
1. India's first oil well was drilled at Digboi in Assam in the 1860s.
2. Digboi refinery began operating in 1901 — Asia's oldest still-working refinery.
3. Assam remains India's traditional oil-producing region (also Naharkatiya, Moran).
4. Newer offshore fields include Mumbai High, and onshore Ankleshwar in Gujarat.
_Source: syllabus Social Science (Geography), Ch 5 "Minerals and Energy Resources", §5.3_
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