Understanding Quantum Key Distribution Over Fibre

The question asks about the agencies that collaborated on India's first Quantum Key Distribution (QKD) project using a Multi-Core Fibre, scheduled for 2025. Quantum Key Distribution (QKD) is a highly secure communication method that uses quantum mechanics principles to exchange encryption keys. This ensures that any attempt to eavesdrop on the key exchange is immediately detectable.

Key Collaboration Details

The successful implementation of India's first Quantum Key Distribution over a Multi-Core Fibre involved a significant collaboration. Based on the provided information, the key partners in this technological milestone are:

• C-DOT (Centre for Development of Telematics): A leading R&D institution of the Department of Telecommunications, Government of India, focused on developing indigenous telecom technology.
• Sterlite Technologies Ltd.: A major global technology company specializing in optical fibre cables and digital network solutions.

Significance of the Collaboration

This collaboration between a government R&D institution (C-DOT) and a private technology firm (Sterlite Technologies Ltd.) highlights a strategic approach to advancing quantum communication infrastructure in India. The use of Multi-Core Fibre technology is crucial as it allows for multiple optical signals to be transmitted simultaneously, potentially increasing data capacity and the efficiency of QKD systems.

Analysis of Options

Let's briefly look at why the other options are less likely or incorrect:

• CSIR & ISRO: While both are premier Indian scientific organizations, this specific QKD project is attributed to C-DOT and Sterlite.
• DRDO & IIT-B: DRDO (Defence Research and Development Organisation) and IIT Bombay are involved in various advanced research, but the primary agencies for this particular QKD initiative are C-DOT and Sterlite.
• NIC & BEL: NIC (National Informatics Centre) focuses on IT infrastructure, and BEL (Bharat Electronics Limited) is a defence electronics company. While they contribute to India's tech landscape, they are not the principal collaborators cited for this QKD project.

Therefore, the collaboration between C-DOT & Sterlite Technologies Ltd. is the correct answer for the first Quantum Key Distribution over a Multi-Core Fibre initiative in India.