mr ramesh thapa according everything has to be done at nepal and if u invite a genuine buyer from any other state or country they would not be blindly believing you it would be better to search for a local company or something solution from that.my company would be interseted in the coins if it has some function but the company needs the fees or else u have to show the material in mumbai.if yes ls let me know i can forward u the website of the comapny