IRCTC may modify any of the terms and conditions contained in this API Agreement, at any time and in its sole discretion, by posting a change notice to your account, changing the agreement, emailing the email address of your account or  otherwise notifying you. The changes to this API Agreement will not apply retroactively and will become effective 7 days after posting. However, changes specific to new functionality or changes made for legal reasons will be effective immediately upon notice. IF ANY MODIFICATION IS UNACCEPTABLE TO YOU, YOUR ONLY RECOURSE IS TO TERMINATE THIS AGREEMENT. YOUR CONTINUED USE OF THE IRCTC API, CONTINUED POSSESSION OF A COPY OF THE API SPECIFICATIONS OR CONTINUED DEVELOPMENT OR DISTRIBUTION OF AN API CLIENT FOLLOWING A NOTIFICATION OF A CHANGE AS DESCRIBED ABOVE WILL CONSTITUTE BINDING ACCEPTANCE OF THE CHANGE.