New Delhi, Dec. 13 -- This week Amazon pledged to pour billions into India, while fight disruptions at IndiGo led to regulatory interventions and a potential revenue hit. Meanwhile the US Federal Reserve cut its benchmark interest rate by 25 basis points, the fall in prices of home-cooked vegetarian meals slowed down, and Delhi experienced slight relief from pollution.

Here's a compilation of this week's news in numbers.

Amazon Inc. will invest an additional $35 billion in India over the next five years to expand its businesses, ranging from retail to cloud and streaming. The company has already poured $40 billion into India since 2010.

The investment is likely to help Amazon compete better with Flipkart and JioMart in online retail, P...