Before you invest in the shares of a company you must get as much information as you possibly can about the same. This is especially true for the way that the company makes money. What products do they manufacture? What type of service do they provide? What are the markets they are working in? Are they working only in India or outside it as well? What is the main product? How well is it doing? Are they the leading name in the market in their chosen domain? Would you go on a date if you did not know anything about them? The answer is no and the same logic applies here as well.
How stable is the company?
How good is the management?
How well are the shares selling?
You have to see how well the company is doing financially through the sales of its shares. The best way to check this would be to see the net gain made by the company over a certain period. Look at the trends. Are the earnings increasing? Is the growth a consistent one? At times, you would see that there are no dramatic increases in the earnings. However, it may be a consistent and steady earner. It would be safe to invest in such a company.