GPS-Aided Geo Augmented Navigation (GAGAN) uses a system of ground stations to provide necessary augmentation. Which of the following statements is/are correct in respect of GAGAN? I. It is designed to provide additional accuracy and integrity. II. It will allow more uniform and high quality air traffic management. III. It will provide benefits only in aviation but not in other modes of transportation. Select the correct answer using the code given below.

I. Correct. GAGAN is India’s Satellite-Based Augmentation System (SBAS) meant to improve GPS performance by adding accuracy and integrity information for navigation, especially aviation.

II. Correct. By enabling better navigation and approach procedures, GAGAN supports more uniform and higher-quality air traffic management.

III. Incorrect. Though developed primarily for aviation, SBAS services can also support other transport sectors and precise navigation applications; so it is not limited only to aviation.

Therefore, the correct answer is (d) I and II only.