Robert just wrote to me that his book will be out in the UK in August, and that it can be ordered here.
The price will be £200 plus shipping for the two volumes of about 1000 pages with a lot of pictures.
M/s Shalimar Books Ltd.
Address: 38 Kennington Ln, Kennington, London SE11 4LS, UK
Phone: +44 20 7735 2101
Web Page:http://www.indianbooksuk.com/