Those bumps can indicate extra metal that does not exist on a genuine coin. I collect these and I have large photos of genuine and fake. The fake I have does have bumps but they are quite severe and obvious. My fake also has characteristics I don't see here. This coin looks a lot more like my genuine than the fake I have.
Compare your coin to this one from Ali Baba https://www.(Not Allowed).com/item/India-Coins-Bahawalpur-Sir-Sadiq-Muhammad-Khan-V-Medallic-Nazarana-Rupee-AH1343-1925-Copy-Coin/32617779014.html?spm=2114.search0303.3.1.nmA4dw
The King's ear wax (bumps) also concern me that's why I asked and the person selling this coin had many more of the same coin, so it just rang a little alarm bell in my head, but I still bought it anyway.
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