Fix corrupted block

I have a database 11.2.0.4.

User gets a corrupted block error on a specified datafile.

I issued:

VALIDATE DATAFILE '/oradata1/dbname/filename01.dbf';

channel ORA_DISK_1: validation complete, elapsed time: 00:00:03

List of Datafiles

=================

File Status Marked Corrupt Empty Blocks Blocks Examined High SCN

---- ------ -------------- ------------ --------------- ----------

5    OK     1              10781        89600           312773762

  File Name: /oradata1/dbname/filename01.dbf

  Block Type Blocks Failing Blocks Processed

  ---------- -------------- ----------------

  Data       0              77996

  Index      0              0

  Other      0              823

Also

select * from V$DATABASE_BLOCK_CORRUPTION ;

     FILE#     BLOCK#     BLOCKS CORRUPTION_CHANGE# CORRUPTIO

---------- ---------- ---------- ------------------ ---------

         5       2810          1                  0 FRACTURED

The db is backed up through RMAN. What is the best way to proceed to recover.