I've not had much luck reading the writing on the postcard, but I WAS able to make out the photographer's name: Munirathnam Rajoo. Doing a Google search of the name got exactly one hit, and that one hit led to exactly one image- a postcard. I'll not post the image itself without the photographer's permission, but here's a link to the site:
http://www.culturalmodes.norfolk.gov.uk ... 20:%205560
I'd be interested in knowing if the image on the site matches the image on the front of the postcard. According to the site, the image is of an unknown soldier, Norfolk regiment, Bangalore (written on the postcard as "Baugalore" , an old-world variation of the name) India.
Due to this, I consider it possible that the writing on the postcard isn't English, and may contain at least one symbol from the Kannada language- one of the "official" languages of the Karnataka region which includes Bangalore.
If, indeed the language is not English, my next best guess would be German, but that really is just a guess. The main text does not seem to be Kannada, as that language resembles Hindu or Arabic writing. But trying to decipher the writing as English didn't get me anywhere either.
Anyway, I hope this helps you some, and tells you more than you already knew.
- Joe U.