The lev is the currency of Bulgaria. On 5 July 1999 the lev was redenominated at 1000:1 with 1 new lev equal to 1 Deutsche Mark. The Bulgarian Lev is the currency of Bulgaria. Convert 1 Bulgarian Lev to Indian Rupee. Convert 1 Indian Rupee to Bulgarian Lev. The Bulgarian lev (BGN) is the official currency of Bulgaria which borders the Black Sea.