1. Send soft copy of ticket if your uncle can take one print
2. Fax the ticket
3. By going into booking history " press get SMS button"
if still no success:...
more...
4. Ask your uncle to save your name as 'IRCTC-TD' and manually send the message in IRCTC format ( recommended only as last resort)
5. Ask your uncle to give ID-Proof to the TTE and pretend finding the SMS in the mobile. Normally in many cases TTE doesn't show interest in looking at SMS.
If still he insists for a ticket. Ask your uncle to pay fine of Rs. 50