I want to open a furniture store. Please suggest budget on initial stage to invest.?

I think you haven't got a clue about running a business if you are asking this question. Before you decide if you should open a furniture store, you should figure out what sort of invetory you need for your furniture store, what quality of furniture you want to sell, and have some plan for making money. The answer is it ranges all over the map from a few tens of thousands up to say $1,000,000 depending on the kind of furniture, how much you want to stock, and what sort of showroom you need.