Revised return after intimation u/s 143(1)

Dear All,

I entered my employer TAN and IFRS code wrongly in my return and filed before the due date. I have claimed a refund. Later, I noticed the mistake myself and filed a revised return on 31.12.2013 and the ack is yet to be sent to the CPC. Now on 3.1.2014, I have received 143(1) intimation dated 20/12/2013 without considering the TDS. 

Now what should I do, send the revised return ack to cpc or file a rectification u/s 154?

kindly advice.