duffers there is facility for resending the irctc msg ..
YOU JST HAV 2-
Log in to your IRCTC online account.
Click on plus (+) of “My Transaction” link from the left tab. For this, you will be prompted to enter your IRCTC password once again.
Now,...
more...

click on “Booked History” link.
You will see that the recently booked tickets details are displayed in the right tab.
Now, select your particular ticket for which you want to get “IRCTC confirmation SMS again”.
Finally click on “Get SMS” button (situated in the most left).
You are done now; you will soon get the IRCTC confirmation SMS again to your mobile number