"WhatsApp is used by over half a billion people in India today in all fields-in business, corporate and informal sectors, in government, for education and among friends, families and acquaintances. This book critically explores the social messaging app's rapid expansion in India, its growing influence and looks at whether, as a form of horizontal communication, it poses a challenge to more traditional structures of communication. The book examines WhatsApp's spread in the personal and professional lives of Indians and the myriad ways in which people in India are using the app in social and business interactions, including among people living with disabilities. Using case studies, interviews, surveys and in-depth research, it analyses key aspects of WhatsApp's massive popularity and its impact on how people communicate. It also explores its impact on the psycho-social dynamics in India including the dissemination of fake news and politically motivated content, and the consequent need for media regulation in the country. One of the first books to analyse the pervasiveness of WhatsApp and social media apps in different areas of Indian society, this book will be of interest to scholars or students of media studies, communication studies, digital media, cultural studies, cyberculture studies, sociology and social policy and media law"--