1996 Rs.5 IRON COIN (Rusted)

Above is the image of Rs.5 rusted coin. It has been minted in year 1996(properly not visible in image).
Is this coin fake or genuine ?? as once I saw a person selling similar IRON rs.5 coin of year 1996 on eBay claiming that this coin was minted by mistake in iron by government mint. 

If you have any infromation kindly share it.