@ Karthik:
Only solution in my opinion is you can try to do ITT and Orientation from any of the ICAI branch in India. Just try to contact other branches around your city/state and contact them and get register there if available. That seems the only option as on today. If you are from around Delhi region, you can apply for ITT through below link for the available seats before March 2013. Further, in my opinion, if you are not attending for May 2013 exams, then you may do ITT and Orientation even after March 2013. As March 2013 end date is for those students who wants to give May 2013 exams. Hope this suffice.
https://www.ittdelhi-icai.org/index.asp