New Delhi, July 17 -- State-run India Post, which lost its dominance with the rise of private courier operators, has revamped its rules to make its services more competitive by introducing online booking cancellations, refunds and greater flexibility for international mail.

It has also specified detailed refund guidelines for different categories of international mail, a government order issued on Thursday said.

Under the amended regulations, customers who book postal articles through India Post's web portal or mobile application can cancel their booking before the item is accepted by the post office. Customers booking articles at post office counters can also seek cancellation on the same day of booking, while the department may cancel...