Rare AR Drachm Of The Chauhans Of Ranastambhapuras.1275 Ad

" The Chauhans were also known as the Chahomaras, who had ruled the same region for over 1,000 years, off and on"
'Glimpses of History', (*illustrated with coins), by Brian Hannon.
* = my words.

For futher research, I would Google "Chauhans of Ranastambhapura", and see what you get.

Read carefully with a pen in your hand and note down salient points, so that you may Google further.

Let us know what you find out!

Wish I could help, not my area at all.

Another interesting coin!

You probably already saw the following information, unless it wasn't you who bought this coin from an eBayer in May...

"According to the Rajput bards, Chauhan is one of the four Agnikula or 'fire sprung' clans, deriving their origin from a sacrificial fire-pit (agnikunda) at Mount Abu to fight against the Asuras or demons. Chauhan is also one of the 36 ruling races of the Rajputs. Agnikula origin was perpetuated by later manuscripts of Raso from the 16th century onwards. James tod was of the view that Chauhans were the most valiant of the Agnikulas. According a number of scholars Chauhans were originally Gurjaras and Chauhan was prominent clan of the Gujjars (or Gurjars)."

As for the metal content, the others of this type I saw online (currently for sale, previously sold, or not for sale) were all listed as silver and all looked like silver. Some were obviously cleaned. The light gold hue of your coin is probably from patination. I have a bunch of fine silver at home (I like to make things...) and in my climate it develops first a light gold-ish patina, rather like the color of tobacco stains, sometimes progressing to a dark color over time if not cleaned. I'm guessing your coins is fine silver.

Edit:

Additional info from that old listing:
"AR drachm of Jaitra Simha"
"This type has been incorrectly attributed by Mitchiner to the Pallava king Narasimha (see MNI 696). These coins are quite rare."