The last date for registration is 20th Sept. The date for the onsite contest is likely to be postponed but has not been finalized yet. Will the deadline for registration be extended? If not, how is one supposed to decide whether to choose Gwalior or not? I think the deadline for registration should be at least one week after the day the onsite contest date is announced.
EDIT: The dates have been officially extended. You can see all the details here: http://codechef.com/icpc/2015
It is expected to be extended. We have spoken to the organisers. It will be announced in the next couple of days.