The auto maker had sold 15,795 units in September last year, it said in a statement.
In the domestic market, TKM sold 12,552 units in September 2014, up 4.46 per cent as compared to 12,015 units in September 2013.
It exported 1,500 units of Etios last month.
"We have registered growth (in domestic market) this month. The industry is beginning to gradually turnaround," Toyota Kirloskar senior vice president (sales and marketing) N Raja said.
"Positive market sentiments combined with the festive season is expected to boost sales in the coming months as well."