Afaik, Sony isn’t offering WAV downloads. Best you can manage will be from their CDs listed on amazon and other dealersSAREGAMA is giving a good discount. They call it monsoon offer where one can get 60% discount. I had a few HD songs in my cart but the amount was too high. This offer helped me to save a good amount!
Anyone has any idea about downloads from Sony India. I have not been able to locate one.