Since you are already holding a B.Tech degree in Computer Science, we can only suggest you to do an M.Tech in Aeronautical or Aerospace engineering. You could also undergo a pilot training and fly planes commercially or for the Air Force. You can also get a MBA degree in Airport Management. These are your options.
Aviation per say includes Cabin Crew and in-flight management services, air cargo management, airport ground handling and airport management. Considering your qualification, you will succeed more pursuing engineering or MBA in terms of remuneration and growth. So it is completely your call.
Know more about Aviation sector and the various fields that you can pursue –
Careers in the field of Aviation
All the best !!