Requested end date must be later than requested start date in Service Request

Hello Experts

I am getting this error in the service request when the date displayed in UI is

Requested start date-06.05.2014

Requested End-08.05.2014

I have searched this error in the SCN, many people have posted this error . I have not got any satisfactory answer in the posts. I am attaching screenshot in the post.

I am configuring the service request.Please reply as its urgent

Thanks all of experts in advance