A ceiling, not a count
When a company is registered it names the largest amount of share capital it is ever allowed to issue. That is its authorised capital — a ceiling written into its own constitution.
Bharat Foods set that ceiling at two crore shares. It has never come close to it. A ceiling is not a count of anything; it is permission to go that far.
Raising the ceiling is possible, but the shareholders have to vote for it. That is deliberate. The people who already own the company get a say before more of it can be created.
Authorised capital tells you what a company may do. It tells you nothing about what it has done.
What was actually sold
Of that ceiling, Bharat Foods has issued one crore shares — put them out into the world in exchange for money. Investors agreed to take all one crore, so the subscribed number is also one crore.
Those two are often equal, and when they are, nobody mentions the difference. They come apart when an issue is not fully taken up: a company offers shares and buyers do not want all of them.
Finally, paid-up capital is the money the company has actually received. Each Bharat Foods share has a face value of ₹10, and every one is fully paid, so the paid-up capital is ₹10 crore.
That ₹10 is a legal bookkeeping figure fixed when the share was created. The market price is ₹500. The two numbers are unrelated, and the ₹500 is the one you pay.
Four numbers, one inside the next
They are not four separate pools of shares. Each sits inside the one above it.
When an issue is fully taken up and fully paid — the ordinary case for a listed company — the bottom three are the same number.
Bharat Foods is authorised for 2 crore shares and has issued 1 crore. How many shares exist?
So when anyone tells you a company's share count, they mean the issued and paid-up number. For Bharat Foods that is one crore, and you own ten of them.