20 paisa, Fisheries (FAO series), 1983
20 paisa commemorative coin minted in 1983, for Fisheries, as part of FAO series. There are other 20 paisa, 10 paisa and 5 paisa coins issued as part of the FAO series. The coin is hexagonal in shape, and is made of aluminum-magnesium - so its very light at 2.2 grams.
These coins are comparatively scarce.
Coins are part of a lot. The coin you get may not be the coin in the picture, but will be a coin in similar condition.