Alibaba posts sales of over $30 bn during 24-hour retail frenzy

Chinese ecomm giant Alibaba posts sales of over $30 bn during 24-hour retail frenzy; Arun Jaitley lashes out at critics, says GST monumental reform, hit growth for only 2 quarters; Asian Development Bank grants EESL $13 mn to promote efficient energy usage in the country; Tech Mahindra sees global 5G rollouts as a huge opportunity to achieve growth. Watch more in this episode of Business Wrap.