As observed, the FVU version 3.8 released by NSDL was not allowing the preparation of Correction Statements for F.Y. 2013-14.
On 12th August 2013, New File Validation Utlity (FVU version 3.9) has been released using which you can prepare your Correction Statements for F.Y. 2013-14.
For more details, Click here