Security Printing and Minting Corporation of India Ltd. (SPMCIL) produces coins at four mints in India: Mumbai, Kolkata, Hyderabad, and Noida. Every coin will include a distinctive mark designating the location of its mint. For instance, coins that don’t have a sign below the date were likely produced in Kolkata. If coins include a diamond symbol, a letter “B” or a letter “M” below the year, that indicates that they were produced at the Mumbai Mint. A star, split diamond, or dot in a diamond below the year indicates that a coin was struck in Hyderabad. Coins that contain round dots beneath the year have been produced at the Noida Mint.

The Security Printing and Minting Corporation of India Ltd. (SPMCIL) is responsible for producing coins in India, operating in four different mints located in Mumbai, Kolkata, Hyderabad, and Noida.

You can identify the origin of a coin by looking for distinctive marks beneath the date:

Kolkata Mint: Coins produced in Kolkata typically don’t have any special mark below the date. So, if you see no symbol, it’s likely from Kolkata.

Mumbai Mint: If a coin bears a diamond symbol, the letter “B,” or the letter “M” below the year, it was minted in Mumbai. The diamond is the key indicator.

Hyderabad Mint: Coins minted in Hyderabad are distinguished by a star, a split diamond, or a dot within a diamond below the year.

Noida Mint: Coins with round dots beneath the year are the product of the Noida Mint.

These mint-specific marks help collectors and individuals interested in the origin of their coins to easily identify where they were manufactured. It’s a fascinating aspect of coin production in India and adds a unique touch to each coin’s story.