Interest u/s 234a

An Individual who is liable to tax audit, due date for the filing his return of income is 17th October,2016. But he has filed his return of income on 11th November, 2016. Total of Self assessment tax was paid on 29th October. Hence There is no tax liability as on 01st November 2016. In this case whether interest u/s 234A will come for one month or two months. Please advice. Thanks in Advance.