Recent Advancements and Indian Contributions in Science and Technology

Paper Prelims

1. XPoSat was launched on 1 January 2024 to study X-ray polarisation from bright sources such as black holes and neutron stars.
2. Chandrayaan-3 pairs Vikram and Pragyan with the 23 August 2023 south-polar soft-landing achievement.
3. Aditya-L1 entered halo orbit around the Sun-Earth L1 point on 6 January 2024 for continuous solar observation.
4. PFBR at Kalpakkam represents the fast-breeder second stage of Homi Bhabha's three-stage nuclear programme.
5. Digital public infrastructure links identity, payments, data exchange, public platforms, and open networks to service delivery.
6. GenomeIndia is a DBT-linked population-genomics resource built around sequencing 10,000 Indian genomes across 20 institutions.
7. Defence technology questions often test correct matching of systems such as Agni, BrahMos, Tejas, Astra, Akash, and Pinaka.
8. Indian science lineages connect C. V. Raman, S. N. Bose, Homi Bhabha, Vikram Sarabhai, M. S. Swaminathan, and A. P. J. Abdul Kalam to their fields.

Key facts

XPoSat was launched on 1 January 2024 to study X-ray polarisation from bright sources such as black holes and neutron stars.
Chandrayaan-3 pairs Vikram and Pragyan with the 23 August 2023 south-polar soft-landing achievement.
Aditya-L1 entered halo orbit around the Sun-Earth L1 point on 6 January 2024 for continuous solar observation.
GenomeIndia is a DBT-linked population-genomics resource built around sequencing 10,000 Indian genomes across 20 institutions.

Key Points at a Glance

1
XPoSat was launched on 1 January 2024 to study X-ray polarisation from bright sources such as black holes and neutron stars.
2
Chandrayaan-3 pairs Vikram and Pragyan with the 23 August 2023 south-polar soft-landing achievement.
3
Aditya-L1 entered halo orbit around the Sun-Earth L1 point on 6 January 2024 for continuous solar observation.
4
PFBR at Kalpakkam represents the fast-breeder second stage of Homi Bhabha's three-stage nuclear programme.
5
Digital public infrastructure links identity, payments, data exchange, public platforms, and open networks to service delivery.
6
GenomeIndia is a DBT-linked population-genomics resource built around sequencing 10,000 Indian genomes across 20 institutions.
7
Defence technology questions often test correct matching of systems such as Agni, BrahMos, Tejas, Astra, Akash, and Pinaka.
8
Indian science lineages connect C. V. Raman, S. N. Bose, Homi Bhabha, Vikram Sarabhai, M. S. Swaminathan, and A. P. J. Abdul Kalam to their fields.

How should RAS Prelims science-tech be revised?

RAS Prelims science-tech should be revised as a map of institutions, missions, dates, numbers, and applications, not as a loose list of inventions. According to the RPSC Preliminary Examination 2024 syllabus, General Knowledge and General Science is one objective paper carrying 200 marks over 3 hours.

Institutions and Contributions

Institution	Contribution area
ISRO	space
DAE and BARC	nuclear energy
DST	research missions
DBT	genomics
ICMR	public health research
CSIR	laboratories
MeitY and C-DAC	computing
DRDO	strategic systems

What Questions Usually Test

A question rarely asks a slogan alone; it asks whether the candidate can connect a mission to its:

instrument,
location,
outlay,
year,
end-use in agriculture, health, weather, disaster management, governance, education, financial inclusion, and climate resilience.

Four Habits for Revision

Tag each scheme by approving body and date: 2023 National Quantum Mission, 2024 IndiaAI Mission, 2021 Semicon India Programme, 2024 GenomeIndia 10,000-genome sequencing announcement, and 2024 PFBR core loading.
Separate discovery from deployment: C. V. Raman or S. N. Bose represent fundamental scientific contribution, while Chandrayaan-3, PFBR, COVAXIN, PARAM Rudra, and semiconductor units represent institutional deployment.
Keep an India-specific application line for every technology: satellite data supports crop advisories and cyclone warning; biotechnology supports diagnostics, vaccines, and genome-linked medicine; chips support electronics, defence, mobility, and telecom; supercomputing supports weather and material modelling.
Preserve exact numbers: Rs 10,371.92 crore for IndiaAI Mission, Rs 6003.65 crore for National Quantum Mission, Rs 76,000 crore for the semiconductor programme, 500 MWe for PFBR, 10,000 genomes for GenomeIndia, and 81% interim vaccine efficacy for COVAXIN in the third-stage clinical trial.

Ministry Distinctions

Body	Ministry / administration link
ISRO	reports to the Department of Space
DAE	handles atomic energy
DBT	belongs to science and technology administration
MeitY	drives digital and semiconductor policy
DRDO	belongs to defence research

Exam Trap

The exam trap is mixing programme names because many begin with National, Mission, or India.
Anchor each one to one date, one official number, and one application.
The safest revision habit is to write a three-part tag for each item: institution, number, and use-case.

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PREDICTED Predicted RAS Questions

Based on PYQ trends and 2026 syllabus analysis

1 MCQ Match List I with List II and choose the correct option: List I has Chandrayaan-3, Aditya-L1, XPoSat, and Gaganyaan TV-D1; List II has lunar soft landing, halo orbit around L1, X-ray polarimetry, and crew escape demonstration.

A A-i, B-ii, C-iii, D-iv Correct answer
B A-ii, B-i, C-iv, D-iii
C A-i, B-iii, C-ii, D-iv
D A-iv, B-ii, C-iii, D-i

Explanation

Chandrayaan-3 is linked to lunar soft landing, Aditya-L1 to L1 halo orbit, XPoSat to X-ray polarimetry, and TV-D1 to Gaganyaan crew escape demonstration.