But when i created a role i am not able to view objects under information_schema.*
I mean I am not able to view the data, I can see only the column names.
Which goes to demonstrate you have permissions. But information_schema uses the permissions of the executing user to decide what to show - it is pre-filtered (and doesn't address PostgreSQL-only features). If you need less restrictive behavior your best bet is to just use the system catalogs. Those give you everything.
