I lived in India from 1984-2005, and wrote to my parents regularly about my adventures in Indian ashrams. From 1984-1993 and again 2001-2005, I was living in Puttaparthi, Andhra Pradesh, and I am adding all of those my "Letters from India" book, which will mainly be of interest to those familiar with Prasanthi Nilayam, the ashram of Sri Sathya Sai Baba.
However, from 1994-2001 I was staying at a wonderfully spiritual, quiet retreat called Shanti Ashram, and I am putting the letters I wrote to my parents while staying there, on this book. The ashram was a dream come true for sadhana. The people are welcoming, it is usually never crowded, and they offer separate cottages to aspirants. The rates are donation basis only. You can contact them for a visit or longer-term stay:
Sri Shanti Ashram
East Godavari Dist
Andhra Pradesh, India 533446