Science & Technology Current Affairs Quiz — All time
Daily news by your exam, state and topic — each with a short summary, key facts and MCQs.
How many Aadhaar authentication transactions were carried out in 2024-25, as per MeitY's release of 28 April 2025?
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Correct answer: B — Over 2,707 crore
Aadhaar number holders carried out more than 2,707 crore authentication transactions in 2024-25.
Consider the following about Aadhaar usage in March 2025: 1. Face authentication transactions exceeded 15 crore. 2. e-KYC transactions totalled 246.75 crore. Which of the statements given above is/are correct?
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Correct answer: A — 1 only
Only 1 is correct. e-KYC transactions in March 2025 were 44.63 crore; 246.75 crore was the total number of authentication transactions.
Consider the following about the 'Sachet' app mentioned in Mann Ki Baat on 27 April 2025: 1. It has been developed by the National Disaster Management Authority. 2. It provides information only in English and Hindi. Which of the statements given above is/are correct?
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Correct answer: A — 1 only
Only 1 is correct. The PM said the NDMA-developed app also provides a lot of information in regional languages.
Under the Vaccine Maitri initiative, India provided nearly how many vaccine doses, as stated by Piyush Goyal at the WHS Regional Meeting Asia on 27 April 2025?
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Correct answer: B — 300 million
India provided nearly 300 million vaccine doses to less developed and vulnerable countries under Vaccine Maitri.
Consider the following about the World Health Summit Regional Meeting Asia 2025: 1. It was the first WHS Regional Meeting held in Asia. 2. It was held at Yashobhoomi, New Delhi. Which of the statements given above is/are correct?
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Correct answer: A — 1 only
Only 1 is correct. The meeting was held at Bharat Mandapam, New Delhi.
As stated at the WHS Regional Meeting Asia on 27 April 2025, more than how many people are now eligible for free healthcare under Ayushman Bharat?
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Correct answer: D — 620 million
Piyush Goyal said more than 620 million people are now eligible for free healthcare under Ayushman Bharat.
According to PM Modi in Mann Ki Baat (27 April 2025), how many space startups are now working in India, compared with only one company 10 years ago?
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Correct answer: B — More than 325
The PM said there was only one company 10 years ago and today there are more than 325 space startups.
Consider the following based on Mann Ki Baat of 27 April 2025: 1. April 2025 marks 50 years of the launch of the Aryabhatta satellite. 2. Dr K. Kasturirangan played a major role in formulating the National Education Policy. Which of the statements given above is/are correct?
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Correct answer: C — Both 1 and 2
Both are correct, as stated by the PM in the 121st episode.
Consider the following about India's assistance mentioned in Mann Ki Baat of 27 April 2025: 1. Operation Brahma was launched to help Nepal. 2. India recently sent a large quantity of vaccine for the people of Afghanistan. Which of the statements given above is/are correct?
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Correct answer: B — 2 only
Only 2 is correct. Operation Brahma was for earthquake-hit Myanmar; Nepal was sent medicines and vaccines on its request.
Which surgery did Army Hospital (R&R), New Delhi, perform using a 3D microscope for the first time in the Armed Forces (April 2025)?
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Correct answer: C — Minimally invasive glaucoma surgery
The Department of Ophthalmology performed minimally invasive glaucoma surgery using a 3D microscope.
Consider the following about the 3D microscope introduced at Army Hospital (R&R): 1. Its use for this surgery was described as a first in the world. 2. The system uses special 3D polarisation glasses and a 55-inch 4K ultra-HD display. Which of the statements given above is/are correct?
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Correct answer: B — 2 only
Only 2 is correct. The release described it as a first and unique milestone for the Armed Forces, not the world.
Consider the following about the event of 26 April 2025 at which ECMS guidelines were launched: 1. Sarvam AI was selected to build India's first indigenous AI foundational model. 2. ECMS was described as a vertical scheme limited to mobile phone manufacturing. Which of the statements given above is/are correct?
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Correct answer: A — 1 only
Only 1 is correct. The minister described ECMS as a horizontal scheme supporting electronics as well as industrial, power and automobile sectors.
According to Ashwini Vaishnaw on 26 April 2025, how many datasets had been uploaded on AI Kosh?
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Correct answer: D — 350
The minister said 350 datasets had already been uploaded on AI Kosh.
What is the theme of World Malaria Day 2025?
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Correct answer: A — Malaria Ends With Us: Reinvest, Reimagine, Reignite
The theme for World Malaria Day 2025 is 'Malaria Ends With Us: Reinvest, Reimagine, Reignite'.
Consider the following, as stated by the Health Ministry on World Malaria Day 2025: 1. India exited the WHO's High Burden to High Impact (HBHI) group in 2024. 2. India aims to achieve full elimination of malaria by 2027. Which of the statements given above is/are correct?
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Correct answer: A — 1 only
Only 1 is correct. India aims for zero indigenous cases by 2027 and full elimination by 2030.
How many high-burden districts does the Intensified Malaria Elimination Project (IMEP)-3 target?
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Correct answer: C — 159
IMEP-3 targets 159 high-burden districts; 122 districts reported zero malaria cases in 2023.
For how long did DRDL ground-test an Active Cooled Scramjet Subscale Combustor on 25 April 2025?
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Correct answer: B — Over 1,000 seconds
DRDL conducted the ground test for more than 1,000 seconds; the earlier test in January 2025 was for 120 seconds.
Which laboratory conducted the long-duration scramjet combustor ground test in Hyderabad on 25 April 2025?
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Correct answer: D — Defence Research & Development Laboratory (DRDL)
The test was conducted by the Defence Research & Development Laboratory (DRDL), a Hyderabad-based DRDO lab.
Consider the following about DRDO's scramjet test of 25 April 2025: 1. Hypersonic cruise missiles travel at more than five times the speed of sound (over 6,100 km/h). 2. The test was conducted at the Scramjet Connect Test Facility in Hyderabad. Which of the statements given above is/are correct?
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Correct answer: C — Both 1 and 2
Both are correct, as per the Ministry of Defence release.
Dr. K. Kasturirangan, whose passing the Prime Minister condoled on 25 April 2025, is remembered for his efforts during the drafting of which policy?
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Correct answer: B — National Education Policy
The PM said India will always be grateful to Dr. Kasturirangan for his efforts during the drafting of the National Education Policy (NEP).
Consider the following about the Prime Minister's tribute to Dr. K. Kasturirangan on 25 April 2025: 1. The PM said he served ISRO with great diligence, steering India's space programme to new heights. 2. The PM credited him with drafting the National Strategy for AI. Which of the statements given above is/are correct?
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Correct answer: A — 1 only
Only 1 is correct. The PM credited him for his efforts on the National Education Policy, not the National Strategy for AI.
With how many organisations did NIELIT sign MoUs at Electronics Niketan on 25 April 2025?
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Correct answer: B — 8
NIELIT signed MoUs with eight organisations.
Which of the following was NOT among the organisations that signed MoUs with NIELIT on 25 April 2025?
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Correct answer: D — Swiggy Instamart
Swiggy Instamart signed an MoU with the Ministry of Cooperation that day, not with NIELIT; the other three are NIELIT partners.
How many districts reported zero measles cases during January–March 2025, as stated at the launch of the MR elimination campaign?
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Correct answer: C — 332
332 districts reported zero measles cases and 487 districts zero rubella cases in January–March 2025.
Consider the following about the National Zero Measles-Rubella Elimination Campaign 2025-26: 1. It was launched on the first day of World Immunization Week (24–30 April). 2. India's MR vaccination coverage for the second dose is 93.7%, as per 2024-25 HMIS data. Which of the statements given above is/are correct?
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Correct answer: A — 1 only
Only 1 is correct. Second-dose coverage is 92.2%; 93.7% is the first-dose coverage.
By which year does India aim to eliminate measles and rubella, as per the Health Ministry release of 24 April 2025?
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Correct answer: A — 2026
The campaign marks a step towards India's goal of eliminating measles and rubella by 2026.
With which institution was the first-in-human gene therapy trial for haemophilia, reviewed at BRIC-inStem, conducted?
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Correct answer: D — CMC Vellore
The first-in-human gene therapy trial for haemophilia was conducted with CMC Vellore.
According to Dr. Jitendra Singh, what was the size of India's biotechnology sector in 2024?
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Correct answer: B — $165.7 billion
India's biotechnology sector reached $165.7 billion in 2024; $300 billion is the 2030 vision.
A Swap Kidney Transplant, first performed at AIIMS Raipur as announced on 24 April 2025, is also known as:
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Correct answer: B — Kidney Paired Transplant
A Swap Kidney Transplant is also known as a Kidney Paired Transplant (KPT).
Consider the following about AIIMS Raipur's first swap kidney transplant: 1. AIIMS Raipur became the first government hospital in Chhattisgarh to carry out the procedure. 2. NOTTO has recommended swap donor transplantation to all States and Union Territories. Which of the statements given above is/are correct?
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Correct answer: C — Both 1 and 2
Both are correct, as per the Health Ministry release.
The IIA study reported on 24 April 2025 found the helium-to-hydrogen ratio in the Sun's photosphere to be consistent with which value?
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Correct answer: B — 0.1
The inferred He/H ratio is consistent with 0.1, the widely assumed value.
Consider the following about the IIA study on helium in the Sun: 1. It used magnesium and carbon features in the Sun's spectrum to estimate helium abundance. 2. It was published in the Astrophysical Journal. Which of the statements given above is/are correct?
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Correct answer: C — Both 1 and 2
Both are correct, as per the DST release.
For how many allied and healthcare professions were competency-based curricula launched on 23 April 2025?
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Correct answer: B — Ten
Competency-based curricula were launched for ten allied and healthcare professions.
With which body did the Health Ministry launch the new curricula for allied and healthcare professions on 23 April 2025?
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Correct answer: D — National Commission for Allied and Healthcare Professions
The curricula were launched in collaboration with the National Commission for Allied and Healthcare Professions (NCAHP).
Consider the following about the curricula launched on 23 April 2025: 1. They cover fifteen allied and healthcare professions. 2. They were developed with the National Organ and Tissue Transplant Organisation (NOTTO). Which of the statements given above is/are correct?
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Correct answer: D — Neither 1 nor 2
Neither is correct. The curricula cover ten professions and were launched with the National Commission for Allied and Healthcare Professions (NCAHP).
Which edition of the SEFCO conference was inaugurated at CSIR-IIP, Dehradun, on 23 April 2025?
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Correct answer: C — 7th
SEFCO-2025 is the 7th edition; the first was held in 2017.
Which institution organises the SEFCO-2025 conference held on 23–25 April 2025?
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Correct answer: D — CSIR-Indian Institute of Petroleum
SEFCO-2025 is organised by CSIR-Indian Institute of Petroleum, Dehradun; the IIT Roorkee Director was chief guest.
Where is the institute that developed the silk-fibre-based optical sensing platform for cholesterol detection, reported on 23 April 2025?
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Correct answer: A — Guwahati
The platform was developed at the Institute of Advanced Study in Science and Technology (IASST), Guwahati.
Consider the following about IASST's cholesterol sensing platform: 1. It is based on silk fibre functionalised with phosphorene quantum dots. 2. The work was published in the journal Nanoscale of the Royal Society of Chemistry. Which of the statements given above is/are correct?
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Correct answer: C — Both 1 and 2
Both are correct, as per the DST release.
What is the endurance of the aerostatic drone demonstrated with NECTAR's support, as reported on 22 April 2025?
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Correct answer: C — Over 4 hours
The aerostatic drone can stay afloat for surveillance with an endurance of over four hours.
Which company developed the aerostatic drone demonstrated by NECTAR?
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Correct answer: D — Airbotix Technologies
The aerostatic drone was developed by Airbotix Technologies, Gurgaon, with NECTAR's support.
Where is the National Institute of Solar Energy (NISE), where a PV Module Testing and Calibration Lab was inaugurated on 22 April 2025?
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Correct answer: A — Gwal Pahari, Haryana
NISE is at Gwal Pahari, Bandhwari, Haryana.
According to Pralhad Joshi on 22 April 2025, how much solar capacity is included in India's 500 GW non-fossil target for 2030?
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Correct answer: B — 292 GW
The 500 GW non-fossil fuel target by 2030 includes 292 GW of solar.
What is the final settlement amount in the Android TV case in which the CCI accepted Google's settlement proposal in April 2025?
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Correct answer: B — ₹20.24 crore
₹20.24 crore, after applying a 15% settlement discount.
Under which provision of the Competition Act, 2002 did the CCI agree to Google's settlement proposal in the Android TV case?
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Correct answer: D — Section 48A
Section 48A: the CCI acted under Section 48A(3) read with the Settlement Regulations, 2024; Section 19(1)(a) covers the filing of information, Section 26(1) the DG investigation, and Section 4 abuse of dominance.
How many beds does the State Cancer Institute at Kurnool, inaugurated on 19 April 2025, have?
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Correct answer: B — 200
The State Cancer Institute at Kurnool Government General Hospital is a 200-bed hospital built at a cost of ₹120 crore.
The State Cancer Institute opened at Kurnool in April 2025 was described as a lifeline for cancer patients of which region of Andhra Pradesh?
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Correct answer: B — Rayalaseema
The Health Minister described the Kurnool institute as a lifeline for cancer patients of the Rayalaseema region.
Which helpline number did I4C advise people to call to report online booking frauds, in its alert of April 2025?
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Correct answer: C — 1930
1930, along with the National Cybercrime Reporting Portal (cybercrime.gov.in).
Consider the following about the I4C alert of 19 April 2025: 1. I4C functions under the Ministry of Electronics and Information Technology. 2. The scams flagged include fake helicopter bookings for Kedarnath. Which of the statements given above is/are correct?
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Correct answer: B — 2 only
Only 2 is correct. I4C functions under the Ministry of Home Affairs.
World Liver Day, on which the PM urged citizens to reduce oil intake, is observed on which date?
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Correct answer: C — 19 April
19 April: the PMO and MHA releases of 19 April 2025 mark World Liver Day.
Which initiative of the Institute of Liver and Biliary Sciences did Amit Shah say would spread awareness about liver health, at the World Liver Day programme in April 2025?
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Correct answer: A — HEALED
HEALED: Shah said the innovative HEALED initiative of ILBS would succeed in spreading awareness on keeping the liver healthy.
Group Captain Shubhanshu Shukla's flight to the ISS, announced in April 2025, was to be part of which mission?
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Correct answer: C — Axiom Space's Ax-4
Axiom Space's Ax-4 mission, as stated by the ISRO Chairman at the review.
Shubhanshu Shukla's mission would make him the first Indian astronaut in space since whose 1984 flight aboard a Soviet Soyuz spacecraft?
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Correct answer: A — Rakesh Sharma
Rakesh Sharma flew in 1984 aboard a Soviet Soyuz spacecraft.
PM Modi's conversation with Elon Musk on 18 April 2025 revisited topics from their meeting earlier that year in which city?
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Correct answer: D — Washington DC
Washington DC: the PMO release says they revisited topics from their meeting in Washington DC earlier in the year.
Which of the following was NOT among the seven hub institutions selected under ANRF's PAIR programme in April 2025?
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Correct answer: C — IIT Madras
IIT Madras is not in the list; the hubs are IISc Bangalore, University of Hyderabad, IIT Ropar, JNU, IIT Indore, NIT Rourkela and IIT Bombay.
How many hub and spoke institutions were selected in the main round of ANRF's PAIR programme announced in April 2025?
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Correct answer: D — 7 hubs, 45 spokes
7 hubs, 45 spokes; 11 more hubs with 61 spokes got limited-budget support, and 30 hub proposals with 166 potential spokes were received.
In the C-DOT–STL trial announced in April 2025, a stable Quantum Key Distribution link over multi-core fibre was established over a distance exceeding:
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Correct answer: D — 100 km
Over 100 km, with high-capacity classical data on the same fibre.
In India's first QKD over multi-core fibre (C-DOT and STL), how was the fibre used?
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Correct answer: C — 4-core fibre: one core quantum, three cores user data
A 4-core MCF was used: quantum signals in one core and high-speed user data in the other three.
Which telescope, described as India's largest optical telescope, did ARIES astronomers use to study the intermediate-mass black hole in NGC 4395?
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Correct answer: A — 3.6m Devasthal Optical Telescope
The 3.6m Devasthal Optical Telescope (DOT), along with the 1.3m Devasthal Fast Optical Telescope.
The intermediate-mass black hole studied by ARIES astronomers in April 2025 lies in which galaxy?
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Correct answer: B — NGC 4395
NGC 4395, a faint, low-luminosity active galaxy about 4.3 million light-years away.
Bose Institute, Kolkata, scientists received the 2025 Breakthrough Prize in Fundamental Physics as part of which CERN collaboration?
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Correct answer: C — ALICE
ALICE (A Large Ion Collider Experiment); Bose Institute is the only DST autonomous institute working in ALICE.
Consider the following statements about the 2025 Breakthrough Prize in Fundamental Physics: 1. The $3 million prize was awarded to researchers of four experimental collaborations at CERN's Large Hadron Collider. 2. The ALICE experiment primarily studies dark matter particles. Which of the statements given above is/are correct?
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Correct answer: A — 1 only
Only 1 is correct. The prize went to ATLAS, CMS, ALICE and LHCb; ALICE studies the quark-gluon plasma, not dark matter.
The Central Tool Room & Training Centre (CTTC), Bhubaneswar, visited by the MSME Minister in April 2025, has made components for which of the following?
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Correct answer: B — Chandrayaan-3 and LCA-Tejas
Chandrayaan-3 (ISRO) and the LCA-Tejas project (ADA); it is now producing components for Gaganyaan.
The pharmaceutical cluster at Mancheswar Industrial Estate, Bhubaneswar, is a Common Facility Centre set up under which MSME Ministry scheme?
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Correct answer: D — MSE-CDP
MSE-CDP: the CFC was established under the MSE-CDP scheme with support from the Government of Odisha.