Teaching BPSC बिहार मध्य विद्यालय (6 to 8) शिक्षक भर्ती 4.0 Mock Test General Knowledge Indian Geography Indian Economic and Human Geography
Which of the following river valleys is rich in coal reserves in India?
1
Mahanadi River Valley
2
Damodar River Valley
3
Son River Valley
4
More than one of the above
5
None of the above