Late receiving of Invoice

We have recived a job work invoice of October 2009, from the party in May 2010. Should it be recorded in the back date Oct. 2009 or should it recorded in the current Financial year i.e. in May 2010.

I need to mention here that TDS on these invoices needs to be deducted and this will also affect our stock statements given to the bank.

Kindly resove my query.