Bajaj Auto Ltd on Tuesday reported an 8 per cent increase in total sales at 4,25,199 units in January. The company had sold 3,94,473 units in the same month last year, Bajaj Auto said in a statement. Total two-wheeler sales were at 3,84,936 units as against 3,32,342 units in the year-ago month, a growth of 16 per cent. Domestic two-wheeler sales were marginally lower at 1,57,404 units as compared to 1,57,796 units in January last year, the company said. Bajaj Auto said it posted its highest ever two-wheeler exports in January at 2,27,532 units as compared to 1,74,546 units in the same month last year, a growth of 30 per cent.