Error : select : [IBM][OCI Driver] CLI0125E Function sequence error. SQLSTATE=HY010

We in our application trying to migrate the database and code from Oracle(10g) to Db2(10.1).
In the code we are using DB2CI for interacting with db2.
In the process we are using the cursors in the application.
as part of the cursor execution the cursor is able to fetch few rows of data and
it is hanging up and giving the error
Error : === select : [IBM][OCI Driver] CLI0125E Function sequence error. SQLSTATE=HY010

we could not figure out what is the problem
the same code with Oracle with OCi works fine ..

Any pointers on this will be of great help

Thanks in advance