"The biggest drain in business on margins is the discounting. And as we keep getting better at tightening discounting, getting into more and more of channel mix play, (between stores and online), which drives for reduced discounting," said Vishak Kumar, CEO, lifestyle business, at Aditya Birla Fashion and Retail told investors. Vector said executing in-season stock adjustment manually, such as inter-store transfers, is reactive, slow and inefficient. Lead times of over 6-9 months force brands to plan collections a year in advance, making demand forecasting difficult and increasing risk of unsold stock.