Letter written on 15 Aug 1957
From 1957 to 1963, Osho wrote many letters to Babulal Ji Deriya, of Babai (MP), India. The wiki has images of thirteen, believed for now to be all of them. Most are written on postcards. See Deriya Ji's page or Osho's manuscript letters for links to all these letters.
For the Post Office, Osho used his full name as above. In addressing him personally, he wrote "Poojya Deriya Ji" or "Shraddheya Deriya Ji" (venerable, honoured), only later using the more familiar "Priya Deriya Ji" (dear, beloved), but all following his sometime custom of addressing male friends by their last names. See also Lashkariji, Punglia Ji, etc.
This postcard is dated 15th August 1957 and sent from Gadarwara. An English translation was published in Sw Ageh Bharti's book Beloved Osho, and likely the Hindi original version was published previously in one of Ageh's Hindi books. It is said also to be in line to be published eventually in a larger edition of Prem Ke Swar (प्रेम के स्वर) (as letter #61), though this development appears not to be fast-tracked. In the letter, Osho mentions a visit to Bhopal and discusses details of an upcoming get-together in Gadarwara and family matters.