No, when I came back to India in October last year after purchasing it, the ECG app never showed up and i contacted Apple and they told me that it is bound by the Point of Sale. My device model number ends with AE, which is for the Arab Emirates and since it is not approved in AE region, Apple confirmed that even though i am in a supported region with a supported local cellular network, it will not be available for me. I had even sent Tim Cook multiple mails and i got a callback from a Customer Service executive to confirm that ECG will not be available till Arab Emirates approves it.He also did not mention any timelines for this.
From what i understand, it is still not approved in AE, but they may have added a software fix in Watch OS 6.2 to handle this case.