The reserves had declined by $112 million in the previous reporting week to $314.507 billion.
Foreign currency assets, the biggest component of the foreign exchange reserves, were up by $2.227 billion to $284.526 billion for the week ended July 22,
Foreign currency assets expressed in US dollar terms include the effect of appreciation or depreciation of the non-US currencies, such as the euro, pound and yen, held in the reserves, the apex bank said.India's forex reserves up by $2.29 billion.