Car sales in the country showed signs of slow down in March despite market leader Maruti Suzuki India posting its highest-ever monthly domestic sales as rival Hyundai posted only a marginal increase, while Tata Motors saw a decline over the same month last year. However, two-wheeler makers led by Hero Honda, which posted its best month ly sales, enjoyed good numbers in March. During the month, Maruti Suzuki India (MSI) reported an increase of 38.85 per cent in sales in the domestic market to 1,10,424 units from 79,530 units in March, 2010. This is its highest-ever monthly sales beating the previous best of 1,07,555 units in October, 2010. The second largest carmaker in the country, Hyundai Motor India Ltd (HMIL), said that its domestic sales grew just 1 per cent. MSIL said that in the last fiscal, sales rose 24.81 per cent to 12,71,005 units from 10,18,365 units in the previous fiscal. Exports fell 26.07 per cent to 11,528 units from 15,593 units in the year-ago period. HMIL