A role is automatically getting DML privileges for tables under a schema even though the current and future privileges are revoked

Were you able to find out what’s causing this ?

Yes, i was able to figure the root cause for this. I was revoking the privileges at database level but the dml privileges were granted to a role at schema level a while back and looks like schema level privileges take precedence compared to database level privileges and hence the objects were getting dml privileges when a new table/view is created. Once i revoked those current & future dml grants at schema level, the issue was taken care of.