ohh, okay. I have not updated the config, as i was referring the old app (1.8) at first . when it didn’t workout i did few changes for the new app(1.9) then finally the app got deployed, post deployment i ran mix ecto.setup then found out this database not found error.
One of the referred blogs.
https://github.com/dwyl/learn-heroku/blob/master/elixir-phoenix-app-deployment.md
I will scratch it out and try a new deployment specific to 1.9. Will update here once thats done.
Thanks guys 
