state gov RSMSSB Grade 4 (Group D) Mock Test Series 2025 General Knowledge Indian Geography Indian Economic and Human Geography
Digboi Oil Refinery, commissioned on 11th December 1901, is India's oldest operating refinery and one of the oldest operating refineries in the world. It is located in ______.
1
Assam
2
Gujarat
3
Odisha
4
Uttar Pradesh
5
Question Not Attempted