Hi Roopesh!
I have had similar problems is the past when i tried to Download the Consolidated TDS file. My guess is this is due to difference in Challan details available with you and the ones available with the income tax department. Back in FY 2008-09 (AY 09-10) interenet banking was not very popular among Small- medium sized firms. They used to manually pay the Challan amount to the bank. The challan details are uploaded by the banks to the Departments Datablase via OLTAS (Online Tax accounting System). Please try to remedy the situation as follows:
Go to Google & type "OLTAS TAN based view". This will take you to the TIN-NSDL website. Now enter the period or quarter in which you need to view the Challan Details. This option will display al the Challans paid by your client during that period. See if the CIN (Challan Identification Number) i.e the BSR Code, Challan Serial Number & Date of Deposit match with the challans available with you. You can also try to match the challans by entering the amounts.
Then enter the CIN as displayed in their Database.
Also this problem might be due to not entering the Challan Details in the Original TDS Return uploaded by your clients previous consultants.
As per my understanding Book entry is only for Government Deductors.
Regards,
Viggi