This is a photo of both sides of the coin.
This coin is from Nepal and belongs to King of Nepal Sri Mahendra Bir Bikram Shah Dev and came in existence in Vikrami Samvat 2012 (Gregorian calendar-1955).
letters inscribed are:-
श्री महेन्द्र वीर विक्रम शाहदेव 2012.
i.e in English Sri Mahendra Bir Bikram Shah Dev 2012
Coin Sri Mahendra Bir Bikram Shah Dev, Vikrami Samvat 2012 (Gregorian calendar-1955)
Begin my imprecise answer which was correct about origin but incorrect about the exact coin.
This appears to be a coin from Nepal. Searching details of text and era.
You can see a similar commemorative coin here:
The letters inscribed one the commemorative one are:
श्री ५ ज्ञानेन्द्रवीर विक्रम शाहदेव
Shree Gyanendra Bir Bikram Shah Dev 2060