The company had sold 43,031 units in September 2016, Tata Motors said in a statement.
Tata Motors head-commercial vehicle business unit, Girish Wagh said that the sales were boosted by a strong customer acceptance of SCR technology and the continued ramp up of our BS4 vehicles production.
The company's overall commercial vehicle sales grew 29 per cent at 36,679 units in the reporting period, he added.