Is there a proof coin in 1989 50 paise?

I recently acquired a 1989 50 paise Hyderabad mint and I notice a small dot below the number 9. Is it just extra metal or is it something else?

The Avid collector

I recently acquired a 1989 50 paise Hyderabad mint and I notice a small dot below the number 9. Is it just extra metal or is it something else?

Looks to be extra metal or spillage out of the stamp due to dirt or so

Thank you, have a good day