As over the past few months I have been reading a lot (and putting up some posts too) about history of South India and some other parts of India (like Shirdi) over the past centuries, it has been fascinating for me to see how the great religions of Hinduism, Buddhism, Jainism and, relatively newer entrants of Christianity and Islam spread through various parts of India, and went through growth and, in some cases, decline phases. As this topic is super-sensitive in India (over 99% of its 1.4 billion people are followers of some religion or the other with no-religion people being only 0.25% of the population, as per https://en.wikipedia.org/wiki/Religion_in_India ), I don't want to get into details of what I have learned about this. Further I want to repeat below what I usually say in such posts to avoid misunderstanding/misinterpretation. I would like to say that I believe in Shirdi Sai Baba's teaching of "Sabka Maalik Ek" (the Lord/owner/master of all is ONE) and wh...