This is a card issued for the Indian State of Travancore-Cochin, formed basically by amalgamating the former States of Cochin and Travancore in 1949, after Indian independence in 1947.
I suspect it's not a genuine usage, however. The card was issued on 14 December 1950, and was valid for postage anywhere in India, or appropriately franked, anywhere in the world. So far so good: the card could
have travelled to Surat, which was outside the territory of Travancore-Cochin. However, the rather too clear date on the CDS is 19 CHI(NGAM) (1)115 ME, which is equivalent to 2 March 1940 CE - over 10 years before the card was issued.
The blue object next to the indicium is a copy of a ½ Anna blue Scinde Dawk. No possibility that it's genuine. The real thing is currently catalogued at £35,000 mint and £9000 used.
Taken all in all, the card has been made up to fool collectors. There were large numbers of these cards left over when the Travancore-Cochin Post Office was closed down and merged into the Indian Post Office in 1951. This was probably one of those remainders, which someone has tarted up with an old Travancore State cancellation.
I'm sorry I can't show you a genuine usage of Travancore-Cochin postal stationery going out of the State/overseas, but this cover
was sent during the relevant period, to Ireland.