What is the primary purpose of the IRNSS/NavIC satellite system?

The correct option is Navigation and positioning services.

Explanation:

IRNSS stands for the Indian Regional Navigation Satellite System, which is operationally known as NavIC (Navigation with Indian Constellation). Developed by the Indian Space Research Organisation (ISRO), it is an autonomous regional satellite navigation system designed to provide accurate real-time positioning and timing services over India and the surrounding region (extending up to 1,500 km from its borders).

The system provides two types of services:

1. Standard Positioning Service (SPS): Provided to all civilian users for general navigation and location-based services.

2. Restricted Service (RS): An encrypted service provided to authorized users, primarily for defense and strategic applications.

Therefore, the primary purpose of the IRNSS/NavIC satellite system is to offer navigation and positioning services.