Walther Eidlitz was an Austrian, compelled by a yearning to visit and explore the religious aspect of India, he left his familiy in the end of 1930 and travelled a long way to India. Since he and his family was jews, the family had to flee from the nazis and immigrated to Sweden. Eidlits have written about his
journey to india, and it's available as pdf's (Unknown India). There are also more books available there.