Highlights of Business Today 20th  November 2016, issue: The latest issue of Business Today carries a cover story on the ouster of the Tata Sons Chairman, Cyrus Mistry. Since the mighty 103-billion Tata Group ousted Cyrus Mistry in a boardroom coup at group holding company Tata Sons, Mistry has unwittingly emerged as that underdog, garnering public empathy at the expense of Tata Groups carefully crafted reputation over 148 years.   This is Business Todays annual issue of BT500 which compiles the biggest companies in India under various categories which provide a clear idea of what the market thinks about these corporate giants.   Newly-listed IndiGo is the top new entrant in Business Todays BT500 and is the markets favourite in its sector. Read more in Top of the  World.   A single uniform indirect tax structure to make India one unified common market could be a distant dream with the Centre and the GST Council looking to settle for a four-tier tax system under the GST regime. Read more about this in A Far Cry.   Many large pharma companies such as Cadila Healthcare saw their market capitalisation slip over the past one year, raising doubts of whether the famed defensive sector on the bourses, had lost its sheen. Read more in Bitter Pill.   India Inc. braced for the combined onslaught of a global slowdown, two successive years of drought, a mountain of corporate debt and bad assets, high inflation, and a slow-to-revive domestic economy. Find out more in The mega churn.   All this and much more in the November 20, 2016 issue of Business Today. So buy now!