Exactly 25 years ago, Nicholas Coleridge, then a hot shot manager at Conde Nast publications, wrote a fabulous book called Paper Tigers, on the foibles, fortunes, eccentricities, influence and political manoeuvring of newspaper tycoons. In India, he met Samir Jain of The Times of India, Ramnath Goenka of The Indian Express, and Aveek Sarkar of The…