Gold coins and bars can be purchased from jewellers & banks. Gold coins are usually made of 24-karat gold & are hallmarked to meet the BIS standards. Always remember to check the purity standard.
The Bureau of Indian Standards (BIS) is a government authority that certifies the purity of gold. Pure gold will have the following signs: a) BIS logo b) Purity/Fineness grade c) Six-digit Alphanumeric code, known as HUID.