Associated Cement Companies Ltd, India’s second-largest cement producer, shipped 1.57Mt of cement in March, up six per cent from 1.48Mt in the same month last year, it said on Monday.    Meanwhile Gujarat Ambuja Cements Ltd, India’s No. 3 cement maker, said on Monday cement shipments in March rose nine per cent on year to 1.356Mt from 1.244Mt a year earlier.    Published under Cement News