Indian Railway Catering & Tourism Corporation [IRCTC] — phone numbers provided for customer care are not in use

This is really shocking that the numbers provided in the official website for customer service are not in use. It is a fact that most of the people in our country use irctc to book their tickets.in such case, irctc should be more careful about their correspondence with their customers. But there is no proper channel to correspond with irctc. Such a bad service provided by irctc.
Please provide appropriate phone number and mail ids for proper correspondence.
Thank you