Hi Ramasamy,
You can use below query (by making changes in your actual Account codes) for Formatted search.
Declare @CtrlAcct varchar (20), @ForeignNam varchar (100)
Select Top 1 @CtrlAcct = $[$56.0.0]
Select @ForeignNam = $[$128.0.0]
Select
Case @ForeignNam
When 'Bangalore' then '140000'
When 'Chennai' then '140010'
When 'Mumbai' then '140030'
When 'Pune' then '140060'
else @CtrlAcct
end [CtrlAcct]
I am not familiar with writing TN. Hope someone else will help you.
Thanks
Unnikrishnan