Tricky. It's clearly of Indian origin - the script appears to be Devanagari, the alphabet normally used to write Sanskrit and other Hindu languages. Your pictures of both sides are upside down.
There's even what appears to be a series of numbers, on pic #5726, the line second from the bottom (when rotated) - it looks to me like it's probably a date, reading "1?85". Unfortunately, I can't seem to find a certain match for the second numeral; my best guess is a "4", but without sure knowledge of this, I can't even tell which calendar this is supposed to be using.
It might not even be a coin; in India, both Hindu and Muslim religious sites produce souvenir amulets, known as "temple tokens". If so, then the numbers may not be a date at all, but have some other meaning.
SOmeone who can actually read this script would be most helpful to you. I could probably try to work it out from first principles, but as you can see from the
Wikipedia article, this script is not one that's easily translated letter-for-letter into English.
Can we have some measurements? Size and, if possible, weight? That might help.
Don't say "infinitely" when you mean "very"; otherwise, you'll have no word left when you want to talk about something really infinite. - C. S. Lewis