sudo crashes on use

[Imtiaz Rahi]

Created a new file /etc/sudoers.d/ to be used by sudo. Decided to set permission to 440 after creating that file.
But sudo started crashing and in no way I can use sudo to recover the situation.

ProblemType: Bug
DistroRelease: Ubuntu 10.04
Package: sudo 1.7.2p1-1ubuntu5.3
ProcVersionSignature: Ubuntu 2.6.32-30.59-server 2.6.32.29+drm33.13
Uname: Linux 2.6.32-30-server x86_64
Architecture: amd64
Date: Tue Sep 20 17:08:29 2011
InstallationMedia: Ubuntu-Server 10.04 LTS "Lucid Lynx" - Release amd64 (20100427)
ProcEnviron:
 SHELL=/bin/bash
 PATH=(custom, no user)
 LANG=en_US.UTF-8
SourcePackage: sudo
Sudoers:
 Error: command ['sudo', '/bin/cat', '/etc/sudoers'] failed with exit code -6: sudo: /etc/sudoers.d/shurjomukhi is mode 0644, should be 0440
 >>> /etc/sudoers.d/README: /etc/sudoers.d/shurjomukhi near line 18 <<<
 sudo: parse error in /etc/sudoers.d/README near line 18
 sudo: no valid sudoers sources found, quitting
VisudoCheck:
 Error: command ['sudo', '/usr/sbin/visudo', '-c'] failed with exit code -6: sudo: /etc/sudoers.d/shurjomukhi is mode 0644, should be 0440
 >>> /etc/sudoers.d/README: /etc/sudoers.d/shurjomukhi near line 18 <<<
 sudo: parse error in /etc/sudoers.d/README near line 18
 sudo: no valid sudoers sources found, quitting

[Launchpad Janitor (janitor)]

Status changed to 'Confirmed' because the bug affects multiple users.