In 43/2001 notification, the following explanation is available. Kindly check with your range authorities.
Explanation.- For the purposes of this notification, “Freely convertible currency” means Asutralian Dollars, Austrian Schillings, Baharin Dinars, Belgian Francs, Canadian Dollars, Danish Kroners, Deutsche Marks, European Currency Units (Euros), French Francs, Hongkong Dollars, Italian Lire, Japanese Yen,Kuwaiti Dinars, Malaysian Dollars, Netherlands Guilders, Norwegian Kroners, Pounds Sterling, Singapore Dollars, Swedish Kroners, Swiss Francs and the U.S.A. Dollars (and includes Indian Rupees bought by the Asian Development Bank by payment to the Reserve Bank of India in foreign exchange).