Hi Vadim and Gajendra,
Thank you very much for the replies.I will work with your suggestions as soon as my system is available.Will update with the results.
But for time being the solution with conversion file
2016.01 -> 2015.11
2016.02 -> 2015.12
2016.03 -> 2016.01
seems simple and good for me..
Thanks,
Manohar