The situation is not very hopeless. Here is what I found.
http://www.ee.lsu.edu/kak/books.html
Subhash Kak is a very good writer and has a very good knowledge on ancient India and Hinduism. He is a distinguished prof at LSU in EE.
I have read book no 6.
Also of very high quality are research papers of Ambedkar in which he asks some very good questions. His work is not a criticism of Hinduism but actual scientific work in uncovering our ancient history. If anyone is interested, I can provide some brief and interesting arguments
