Consider the following : 1. Aarogya Setu 2. CoWIN 3. DigiLocker 4. DIKSHA Which of the above are built on top of open-source digital platforms ?

States a government policy pattern: new digital public infrastructure for agriculture will be built as open source, open standard and interoperable public good.

A student could infer that similar central policies or preferences for open-source/open-standards might apply to other recent government digital public goods (like health apps) and then check whether Aarogya Setu follows that pattern.

Mentions the National Digital Health Blueprint/National Digital Health Mission as the governmental digital health implementation framework.

One could check whether Aarogya Setu was developed under or aligned with this national digital health framework and whether that framework mandates open-source platforms.

Describes a broader government emphasis on building Digital Public Infrastructure (JAM Trinity etc.) as a repeatable model for public digital goods.

A student could use this pattern — that the government builds centralized digital public infrastructure — to investigate if Aarogya Setu was released as part of such infrastructure and whether those infrastructures are open-source.

Gives an example of a government 'portal' (Stand-up India) described as a digital platform built to support public programmes.

Use this example to reason that many government services are implemented as platforms/portals and then check whether the health-sector equivalent (Aarogya Setu) followed the same build-model and its licensing/open-source status.

Describes multiple government-led digital platforms for skilling and workforce mapping (PRIME, ASEEM) illustrating a pattern of creating sectoral digital platforms.

Compare these platform examples to Aarogya Setu to see if the health platform was similarly structured and whether those platforms were open-source or proprietary.