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It also added, It has come to the notice of the Reserve Bank of India that in certain places there is reluctance on part of traders and members of the public to accept Rs 10 coins due to suspicion about their genuineness.
A local from Goa said, “There was an immense shortage of the coins a few months back. We were facing a lot of trouble because of the unavailability of coins for transactions. But for these four months, rupee ten coin is easily available and all types of these coins are accepted here.”
The fourth design of the ₹10 coin, minted since 2019, featured the Lion capital, the lettering “सत्यमेव जयते” in the center plug and the lettering “भारत” on left and “INDIA” on right on the outer ring. On the reverse side of the coin is the number 10 below the ₹ currency sign, the year of issue and eight stylized grain stalks. 
It was later clarified by the Reserve Bank of India (RBI) that the “alleged fake” coin was the earlier 2008 design, which predated the adoption of the ‘₹’ symbol in 2010, and was still in legal circulation, along with the 2011 design and those refusing to accept it could face legal action.   
Demonetisation : Mutilated 10 rupee coins get in bank
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The rumors on fake 10 rupee coins are all false. RBI says, both these 10 rupee coins were minted by the Government of India and are legal tender. These 10 rupee coins might look different, but their transaction value is the same.
Let me ask you a question? Do you think a person who mints fake 10 rupee coins, will forget to make it look like the original.
Based on these rumors many started to reject the acceptance of 10 rupee coins with fear. Also, there are rumors that the circulation of 10 rupee coins stopped. However, there is no such truth in this.
Whether Government of India can’t release two variants of same 10 rupee coins? Yes, there is a possibility. Then how can we assume and confirm that based on some design changes we must judge this as fake? It is completely wrong. As long as RBI notify and confirm, we must assume that these are rumors.