TDS Challan used wrongly.

Pay amount via new challan
Add that challan to traces
Request rectification of return
Make corrections in respective return by adjusting against that New challan.

Thank you sir, but the people who has filed the q3 return, they have mentioned the january challan in q3, so I don't need to put it again in q4 so what I have to do....

As per demand you have to pay TDS,(because earlier you not paid, instead you used old challan twice) and that new challan as paid by you now, have to be adjust in Q4 return instend of old challan as used by you (Which is already fully used to set of liability of Q3) via rectification of return of Q4 as mentioned in earlier reply.