Always use your answer to show that you know about the 
company, its products and requirements and you are ready to 
do what it takes to promote that goal. For this purpose you 
need to research well the company, goals, mission, vision 
its past five years financial performance and future plans. 
A person who is well informed about the company is very 
much interested in the company. This is the message that 
goes to the interviewer and this is the message that he/she 
should get.

Employers of big company's not only love to hear the 
company's praises, they expect it. Be sure that you include 
a bit of subtle flattery in your answer; however the 
flattery should be subtle as otherwise it will look cheap 
and backfire.

You can always say that the company has always been your 
dream company but did not apply till you thought that you 
have achieved a certain amount of skill set and experience 
so you could contribute to the growth and future of the 
company. You could say that till that time, though you 
searched for opportunity, you never got a job that would 
exactly fit to your skills set as well as the present job 
and so on.

yes

its my dreamrole to work for your company.actually im 
searching for a gud company where i can stand,where career 
growth is there.where i can show my talent......