Explanation:

All statements are correct.

• AAI successfully conducts flight trials using GAGAN based LPV approach Procedure at Kishangarh Airport.

GPS Aided GEO Augmented Navigation (GAGAN)

• GAGAN is an Indian Satellite Based Augmentation System (SBAS) jointly developed by AAI and ISRO.
• It is the first such system developed for India and neighboring countries in the equatorial region.
• There are only four Space-Based augmentation systems available in the world namely India (GAGAN), US(WAAS) Europe (EGNOS) and Japan (MSAS).
• The successful trial is a great achievement and major milestone in field of Air Navigation Services (ANS) in the history of Indian Civil Aviation Sector.
• India is the first country in Asia Pacific Region to achieve such a landmark.

GAGAN GEO footprint expands from Africa to Australia.

• The GAGAN system provides non-precision approach (NPA) service accurate to within the radius of 1/10th of a nautical mile (Required Navigation Performance or RNP-0.1) over the Indian FIR as well as precision approach service of APV-1.0 (Approach with Vertical guidance) over the Indian landmass on nominal days.

Hence option 4th is correct.