The turnout of women voters will likely be more than that of men in the 2019 general election and yet 21 million women will not have their names on the rolls. Opposition unity will be decisive and alliances will make or break every state. These and other such revelations fill The Verdict (Penguin Random House), the forthcoming book by election experts Prannoy Roy and Dorab Sopariwala. The authors spoke to Satish Padmanabhan on what makes the 2019 polls the biggest and most important. Excerpts: