Problem resolved!! One must uninstall the ola app(the one that says the device doesn't support google play services). Then run the patched ola app :- it would work
follow the guidelines point to point if you dont have play store loaded in your bb.
if you already have playstore and google play services loaded in the phone then you would have to have a patched version of ola app. the details of patching is explained in detail point to point in the cobalts landing page