Reason can be stated as "For getting better job prospect in terms of stability and salary".You can also express your desire that you had, to join that esteemed organisation since you started your career.
Arise Awake and Rest Not till the Goal is Achieved.
The management paying is not much good. They are not paying is best answer. so that the person who is asking u this question will have no more questions.
OR
For better position u can say, but they will ask u an immediate question that if you get better position after join this job, u may go
Its not alwasy taken positively by the interviewer if you say the truth as Abid said.
Sometimes you may not be happy after joining a new organisation since you always compare the new one with your previous organisation and find some changes which is difficult for you to adjust with.If you tell them, they will never buy your logic and think that if they offer you, you may leave their organisation also.
Arise Awake and Rest Not till the Goal is Achieved.
