Identical Sizes, Different Values: The Coin Recognition Problem

The new coin series was expected to include tactile features for easier recognition, but with overlapping sizes may still pose challenges for the visually impaired.

However, when comparing the older ₹1 coin, the existing ₹2 coin, and the newly launched ₹5 coin, it becomes apparent that all three share the same 25 mm diameter and have nearly identical thickness, making physical distinction challenging.

The last issuance of the 25 mm ₹1 coin dates back to 2004, while the ₹2 coin with the same diameter continued to be minted until 2019. With the introduction of the new coin series—particularly the new ₹5 coin—circulation now includes multiple denominations using the same size profile, creating an overlap and potential confusion for both the visually impaired and the general public.

Although the government has indicated that the new series will eventually replace the older denominations, such transitions in India typically take several decades to fully phase out earlier series from circulation. During this prolonged coexistence, distinguishing between coins of identical size becomes difficult, even though the government consulted and received approval from associations representing the visually impaired prior to releasing the new designs.

The new coin series was officially launched in March 2019, but its rollout has been gradual. Circulation of the ₹2 and ₹5 coins from the series has only recently begun, while the release of the remaining denominations is still pending, further delaying public familiarity and widespread adoption.

This combination of overlapping sizes, slow rollout, and extended coexistence of multiple series underscores the need for clearer tactile differentiation to ensure accessibility and ease of recognition for all users, especially the visually impaired.