Dear Anil (gujgold),
Interestingly your product is unique and it would require some experimenting to know its potential for online sale.
To start with,
A) Start Listing your items on eBay India and eBay worldwide. Mention all the benefits and features that you have mentioned in this post in all your listings for buyers to get a better understanding of your product.
B)Create an " About Me" Page containing details of your products and benefits to the buyers. After a while if a buyer searches for Gold Bars in Google, your About Me page will start appearing thus increasing your buyer visit and chances of selling.
C) I also did a completed Items Search in eBay USA and found that Gold bars do sell there and hence you may want to try listing them internationally.
Please note there are eBay Fees applicable for International Listing.
D)If you are interested, we can provide you a FREE Training where our eBay experts would guide you through the listing & sales process. Please write to training.india@ebay.com with your complete contact details and preferred time of training.
Last but not the least, do have a lot of patience since it might be some time before you see some sales in this unique Category :-)
Warm Regards,
Tanya Goel