How to know the number of bidders for a particular stock?
Hi,
I am new to stock market and have been reading lots of article to know what stock market is and how to trade there.
I was curious about the fact that how can some one know, that at a point of time, how many people out there bidding for a particular stock?
Is there any paid or free service available which can let me know that information? To my point of view, apart from all the technical indicators, if you have this information, you can make more informed decision for a particular stock.

No one counts the individuals. Total view is as good as telling you to get a seat on the stock exchange.
Total View is what you are talking about. It shows you every single quote and order at every single price, which means about 20 times more than you see with level II quotes. I love it, but it is very expensive and you pretty much have to do this for a living to afford it.
For exchange trades stocks, the specialist is the only one with that information — and he is not about to share it with you, or anyone else.