@Mrunal Could you try recreating the application using the instructions provided here:
https://community.jboss.org/people/fjuma/blog/2013/08/19/downloadable-openshift-aerogear-push-server-cartridge-080

I've tried this and can then run the following command successfully:

openssl s_client -connect release-dbevenius.rhcloud.com:8443 
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