Domestic sales of Tata Motors' commercial and passenger vehicles remained flat at 41,428 units in January over the same month of the previous year.
Sales of passenger vehicles in the domestic market grew 21 per cent to 12,907 units last month on the back of robust sales of hatchback Tiago, Tata Motors said in a statement.
In the commercial vehicles segment, the company's domestic sales were down 7 per cent at 28,521 units, the auto major said.