GS3

Current affairs relevant to GS3.

GS3 · Climate change / technology

DST launches R&D roadmap for carbon capture (CCUS)

Cement releases CO2 from limestone itself, so renewables alone cannot clean it. That is why CCUS keeps coming up in Mains answers on industrial decarbonisation.

4 Dec 2025
GS3 · Cyber security

Centre drops mandatory pre-installation of Sanchar Saathi app

The episode is a good case on privacy and consent. A state tool may be useful, but compulsion on every device raises questions under K.S. Puttaswamy v Union of India (24 Aug 2017), where a nine-judge bench held privacy to be part of Article 21 [Supreme Court].

3 Dec 2025