Hi Vanita
You cannot show the same challan in more than one TDS return. In our organisation also, it has happened that same challan was shown in two quarters for their respective amount pertaining to those quarters. The dept. considered the challan for the return which got processed first. And for the other return, Dept. issued us the notice.
However, after issuing notice, it was brought to the notice of dept (AO for TDS) that we have deposited the amount in single challan for more than one quarter. Then they adjusted the amount in their system. We could save ourselves from depositing the tax again.
However, depositing the amount of more than one quarter in single challan should always be avoided.