Indian Economy
In India the term Black Revolution is associated with:

Self-dependence in the production of coal
Self-dependence in the production of balck corp
Self-dependence in the production of petroleum crude oil
Nurturing the Black Soil

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Indian Economy
Devaluation of a currency means

reduction in external value/exchange value of currency by the government
reduction in currency value due to wear and tear
all of the listed here
fall in exchange value of a country by market forces

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Indian Economy
Depreciation means

closure of a plant due to labour trouble
destruction of a plant in a fire accident
loss of equipment over time due to wear and tear
closure of a plant due to lock out

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