Foreword / by Rehan Yar Khan -- Introduction -- Ideation, validation and pivoting -- Girish Mathrubootham : freshworks -- Nithin Kamath : zerodha -- Paras chopra : visual website optimizer (wingify) -- Nikhil rasiwasia : fashiate -- Traction and virality -- Gaurav Munjal, Roman Saini and Hemesh Singh : unacademy -- Prasanna Sankar : likealittle -- Nandini and Ankit Maheshwari : instablogs -- Business model and fundraising -- Tarun Mehta: ather energy -- Amit Ranjan: slideshare -- Ankit Gupta: pulse -- Ankur Singla: akosha -- Sales and marketing -- Varun Aggarwal: aspiring minds -- Deepak Syal and Chakshu Kalra: greyb -- People, operations and customer service -- Jaydeep Barman: faas's -- Sameer Guglani: madhouse -- About the author