Devaluation of currency means
Reduction in the value of currency vis – a vis major internationally traded currencies.
A deliberate downward adjustment to the value of a country's currency, relative to another currency, group of currencies or standard. Devaluation is a monetary policy tool of countries that have a fixed exchange rate or semi-fixed exchange rate.
Devaluating a currency is decided by the government issuing the currency, and unlike depreciation, is not the result of non-governmental activities. One reason a country may devaluate its currency is to combat trade imbalances. Devaluation causes a country's exports to become less expensive, making them more competitive on the global market. This in turn means that imports are more expensive, making domestic consumers less likely to purchase them.