The company had sold 73,524 units in August last year, Tata Motors said in a statement.
In the passenger vehicles category, global sales last month stood at 44,956 units as against 42,988 units in August 2014, up 4.57 per cent.
Sales of luxury brand Jaguar Land Rover rose by 4.59 per cent to 33,103 units in August compared with 31,650 units in the same month last year.
The company's commercial vehicles sales in August declined by 2.79 per cent to 29,683 units from 30,536 units a year ago.