Digital Public Infrastructure (DPI) and E-governance Initiatives

The availability of open APIs for Aadhaar means that the Aadhaar system can be easily integrated into various electronic devices, such as smartphones, laptops, point-of-sale terminals, etc. This allows these devices to leverage the Aadhaar platform for authentication and other services. The Aadhaar APIs provide the capability to perform online authentication using biometric modalities like fingerprint and iris scans. This allows for secure identity verification and authentication through electronic devices and applications. Therefore, both statements 1 and 2 are correct.

An open-source digital platform is essentially a software platform where the underlying code is freely available for anyone to see, modify, and distribute. This openness fosters collaboration, transparency, and innovation in software development. All of the above (1. Aarogya Setu, 2. CoWIN, 3. Digi Locker, 4. DIKSHA) are built on top of open-source digital platforms. - Aarogya Setu initially wasn't open-source, but the Indian government later made its source code available. - CoWIN leverages open-source software for its development. - DigiLocker utilizes an open-source platform called Digital Locker System.
- DIKSHA is built on the open-source platform Sunbird.

* Statement 1 is not correct: The formation of India’s own internet companies, similar to China’s approach, is not an aim of the Digital India programme. The initiative focuses on creating digital infrastructure, providing digital services, and promoting digital literacy — not establishing government-backed internet firms. * Statement 2 is not correct: The Digital India plan does not include any policy framework to attract foreign multinational corporations to build data centres in India. While data localisation and data centre policies have emerged later under different frameworks, they are not part of the original Digital India objectives. * Statement 3 is correct: One of the key aims of Digital India is to connect villages through broadband and to provide Wi-Fi access in schools, public places, and tourist centres. This is part of its core pillars like Broadband Highways, Public Internet Access Programme, and Early Harvest Programmes.

Statement 1 is Correct: Mission Sudarshan Chakra is designed as a multi-domain security umbrella. It explicitly aims to enhance India's air defence, ballistic missile defence, and aerial offensive capabilities, acting as both a defensive shield and an offensive sword. Statement 2 is Correct: The mission integrates advanced technologies like AI, space-based sensors, and directed energy weapons to ensure rapid, precise, and powerful defence responses. This indigenous development (incorporating projects like Project Kusha) is specifically aimed at reinforcing India's strategic autonomy and self-reliance in the defence sector. Statement 3 is Correct: A major distinguishing feature of this initiative is its expanded scope. Announced as a 10-year national security initiative, a stated goal of the mission is to bring all public places (including hospitals, railways, and religious/cultural sites) under an expanded nationwide security shield by 2035, moving beyond the conventional protection of just military and strategic installations. Therefore, the correct option is A.

In India, the term "Public Key Infrastructure" (PKI) is used in the context of digital security infrastructure. PKI is a system that facilitates secure electronic communication and transactions by using digital certificates, certificate authorities, and other related components. It plays a vital role in ensuring the authenticity, confidentiality, and integrity of data exchanged online.