All new requirements from onsite team

The on-site call was scheduled later in the day and till that time I was asked worked on some information shared by my manager and the delivery person. Patiently I was working on the iterations till the last minute before the call and was hoping that whatever changes were suggested by my manager and delivery would be thrown out by the on-site team. The call started and I was driving the call, I was detailing about the slide flow and also about the slides I have included based on my understanding of the client requirements. The onsite team was acknowledging the slides, but onsite team was detailing new requirements all together and they want all the slides to be completed in next 2 days. Entire offshore team was taken aback with all new requirements from onsite and was hoping it will be finalised requirement from client. So, from next day we started to work again from scratch with new requirements detailed and I was doing some research to get the required inputs for the slides. However, this effort and attempt with new requirement also went in vain and to know more check out blog posts in “G R Team Sites”