I am writing this Book because of my sheer desire to share with you all of my a little understanding on the "Rahu Centric HP Theory Principles", which I gained from my Sri Tatvam Asi Ji's writing in various groups and also my private discussion with him and my Guru Ji Sri Ramadas Rao Ji on this subject. Please treat me as merely as a messenger in this process of compiling various posting of Sri Tatvam Asi Ji's discussions in various discussion groups and presenting them in a form of a Book. So that the research minded Jyotish students like me will see all the relevant material in one place and see some merit in this theory and then do some more research to test it out. Sri Tatvam Asi Ji said "I wrote on Rahu and created Rahu centric theory, which is a divine inspiration, and maybe it is the first really original research after Meena's stellar theory. I do not take credit for that as it was God's help and nothing more than that". I have used these principles on ~ handful of charts and found to be working well, but again, I have not done any extensive testing / research by applying these, so I will leave that for you to test it out. I sincerely hope that you will make a sincere attempt to give a look at these principles with an open mind and test for yourself. May be you may have to refine these principles and then share your findings with everyone in the coming days. I wanted to cover the related Dasa and Bhakti calculations and its application, but could not do so as lack of time. I sincerely hope either me or someone else will surely write about the Dasa calculations as Part-Il in the near future. So stay tuned for that. Having said that, now fasten your seat belt and enjoy the ride of some new original research by Sri Tatvam Asi Ji, which you may like it at the end of reading this book. If you do not like it, take it easy and thanks for sharing your time in reading this work of mine and move on to your interested area of Jyotish.