We can’t recover or restore lost control file, but we can still startup the database using control files created using multiplexing in different locations.
We can query the following command
SQL> alter database backup controlfile to trace;
We find a trace file(.trc) in udump location. We can edit it and find the complete database structure.
Multiplexing can also be done using Following command
SQL> alter database backup controlfile to <Different location/path>.