No, there is no necessity. Incidentally, we emphasize not to book any flight or hotel before receiving your Authorization Code, because you may face problem in terms of timing and lose your money.

No, there is no necessity. Incidentally, we emphasize not to book any flight or hotel before receiving your Authorization Code, because you may face problem in terms of timing and lose your money. There have been cases whose Authorization Code Issuance has been delayed a month and if the passenger has book his/her flight, he/she certainly has lost it.