The past two days must have been unsettling times for Indian promoters. First, a UK judge censured Anil Ambani for his apparent ignorance of personal guarantees extended by his companies to Chinese financial institutions. Then today, the National Company Law Appelate Tribunal ruled – after three years – restored Cyrus Mistry to chairmanship of Tata Sons, the group holding company, and declared the appointment of the current incumbent, N Chandrasekaran, in 2017 as illegal. The Tata group will appeal in the Supreme Court, of course, but the judgement has certainly thrown up issues about corporate governance which, as our first