Hello Raj, welcome to Namepros I see it's your first post. On GyanTool, you could potentially sell this in the Indian subcontinent and seems to be a tough sell.
Maybe follow what @nithya78 said, hope you get a hit. Even sold to a supplier of these things. I'm not too optimistic, I think it will be a struggle. IMO
Unless ''gyan'' is some sort of company producing tools, or at least some very popular Chinese name, this domain name stands no chance unfortunately...