हि एक स्वतंत्र, भारतीय उपग्रहावर आधारीत स्थान-दर्शक प्रणाली आहे.
(1) NavIC (नेव्हीगेशन विथ इंडियन कॉन्स्टेलेशन)
(2) GAGAN (जी.पी. एस. एडेड जीओ ऑग्युमेन्टेड नेव्हीगेशन)
(3) GPS (ग्लोबल पोझिशनींग सिस्टीम)
(4) AIPS (आर्यभट्ट इंडियन पोझिशनींग सिस्टीम)

The correct answer is Option A (NavIC (Navigation with Indian Constellation)).

Key Points:
• NavIC / IRNSS: NavIC (*Navigation with Indian Constellation*), originally named the Indian Regional Navigation Satellite System (IRNSS), is India's sovereign, standalone regional satellite positioning system developed by ISRO.
• Constellation Architecture: Comprises a 7-satellite constellation (3 in Geostationary Orbit and 4 in inclined Geosynchronous Orbit) delivering positioning accuracy better than 10–20 meters over India and extending up to 1,500 km beyond its borders.
• Dual Services: Standard Positioning Service (SPS) for civilian users and encrypted Restricted Service (RS) for authorized defense users.
• Other Systems:
• GAGAN: An augmentation system dependent on US GPS.
• GPS: Owned by the United States Space Force.
• Official Key: Option (1) accepted.
• Key Takeaway: NavIC is India's independent satellite navigation system with 7 satellites covering India and up to 1,500 km beyond its borders.