After a booking has been carried out prepone/ postpone of booking is just not permissible. Total fare refund is anticipated being built only in case of cancellation of Helicopter operations on account of poor temperature/ technical motives at the conclusion of Helicopter Operators. After booked, the ticket is non transferable. https://katra-helicopter-ticket-b39515.blogvivi.com/28840433/the-smart-trick-of-vaishno-devi-helicopter-ticket-that-nobody-is-discussing