20 Paise Al-Mg Commemorative coin KM#45 KM#46

There were two different 20 Paise Aluminium-Magnesium Alloy Commemorative coins issued.

Details as per standard catalog :

Hyderabad Mint :  FAO Reverse Side   -------------------  a variant of same mint coin : some sort of error coin
Observe of the same coin : 

Hyderabad Mint Fishries Coin  Reverse Side -------------------Kolkata Mint Fishries Coin Reverse Side 
Observe of the same coin :