How can I register for IRCTC internationally (without a +91 mobile number)?
Since September '17, the IRCTC website has modified their sign up form. They have changed the Mobile field, to an ISD-Mobile field, and added the following message:
International/NRI users with ISD code other than 91 have to pay Registration fees after successful registration i.e. on first login. Please note that the Registration fee for International/NRI users is Rs. 100 + GST.
Even if you have previously managed to register with an international number, you will be prompted (at your next login) to pay this fee before you can continue using the account.
US$1.80 (£1.40 sterling, NZ$2.65) does not seem an enormous surcharge for foreign visitors.