Air India — flight delay ai 863 due to landing failure in first attempt at mumbai

Sir,
This is to bring to your kind attention that Delhi to Mumbai bounded Air India flight AI 863 was delayed first at Delhi airport by 15 min reason stated was Incoming Aircraft carrier arrived late at Delhi, second delay resulting due to landing failure attempt, almost took 30 minutes to land AI 863 again in repeated attempt, reason not stated for landing failure attempt. I am a frequent flyer with Air India and never have experienced such situation that would make me feel jeopardize of my life. This is the first time I have realised risk of landing. Kindly, acknowledge and let me know the actual reason for such failure cause being a frequent flyer I would not risk another time to fly with Air India.