The most commonly searched-for Hindi versions are typically translations of the work compiled by or translated editions of South Indian Nadi classics. A popular title often sought is "Bhrigu Nandi Nadi" translated by Dr. B. S. Rao or similar scholars.
This is a sensitive point calculated using the nodes (Rahu/Ketu). Most advanced BNN books dedicate an entire chapter to this. It tells you exactly when an event will happen (month and year). Bhrigu Nandi Nadi Book In Hindi Pdf