From Índia?

Thanks for the help.

 My help is to crop the pictures - and ask what is the diameter? 

I think is 10 mm / 8

This coin is an example of the famous “bull & horseman” billon jital from northern historical India (including parts of Pakistan and Afghanistan). Millions of these were made, generally between 900-1300 AD, by numerous rulers, in dozens of varieties. Sometimes it can be difficult to determine the variety, but maybe some of our members can help, and with the coin in hand you may be able to find a match in one of the references. Here are a few good sources of information.

http://www.forumancientcoins.com/dougsmith/bh.html

https://www.coincommunity.com/forum/topic.asp?TOPIC_ID=267786

https://en.numista.com/catalogue/index.php?mode=simplifie&p=1&l=&r=bull+horseman+jital&e=&d=&ru=&i=&ca=3&no=&se=&v=&m=&a=&t=&dg=&w=&u=&f=&g=&c=&wi=&sw=&tb=y&tc=y&tn=y&tp=y&tt=y&cat=y&ct=coin

Robert Tye’s book Jitals is also a great resource. The illustration pages are available as a free .pdf download (with registration) from https://www.academia.edu/356700/Jitals

The writing above the bull's hump in the first photo is a good clue for more specific identification.
 

In my opinião, my is made of copper

Billon can mean a wide range of mixtures of copper and silver. Many of the later ones have high percentages of copper, like yours. 

So, its false

I don't see any reason to suspect it's false, and coins like this are so common and low-value that I have not seen fakes made.  Every indication is that it's a real, billon (low-silver) bull-and-horseman jital like many others. By “later” for these coins I mean made approximately 1200 AD. Please read up and inform yourself about billon and this type of coin.  

Thanks you.

I Will.

N#227954