39174
UPSC Mains 2024
🔆Directive Principles Of State policy DPSP
✅ The constitution of India aims to establish not only political democracy but
also socioeconomic justice to the people to establish a welfare state.
✅These provisions are given in Part IV of Indian Constitution.
✅ Directive Principles of state policy are in the form of instructions to the governments at the centre as well as states.
✅Though these principles are non justiciable, they are fundamental in the governance of the country.
✅ The idea of the Directive Principles of State Policy has been taken from the
Irish Republic .
✅The Directive Principles of State policy were incorporated in our constitution in order to provide economic justice and to avoid concentration of wealth in the hands of few people.
✅ The constitution covers from Article 36 to 51 as Directive Principles of State
Policy.
✅They are unique blend of socialistic, liberal, democratic and Gandhian Principles.
✅ They describe as the ‘conscience of the constitution’.
✅ In the “State of Tamil Nadu etc. Vs L.Abu Kavur Bai” case in 1984 , the Supreme court held that although directive principles of State Policy are not enforceable, yet the court should not avoid them
Scope of application of nanotechnology in the development process of the country:
Agriculture: Nanotechnology can be used in agriculture and food production in the form of Nano sensors for monitoring crop growth and pest control by early identification of plant diseases. These Nano sensors can help enhance production and improve food safety. With inputs related to water use, fertiliser and pesticides delivered in nanoscale productivity and yield can be increased.
Medical applications: Development of newer drug delivery systems based on nanotechnology methods is being tried for conditions like cancer, diabetes, fungal infections, and viral infections and in gene therapy. Nanotechnology has also found its use in diagnostic medicine as contrast agents, fluorescent dyes and magnetic nanoparticles.
Electronics: The semiconductor industry has been able to improve the performance of electronic systems for more than four decades by downscaling silicon-based devices. Carbon nanomaterials such as one dimensional (1D) carbon nanotubes and two dimensional (2D) graphene have emerged as promising options due to their superior electrical properties which allow for fabrication of faster and more power-efficient electronics.
Textiles and Clothing: Nanotechnology has shown a huge potential in the textile and clothing industry which is normally very traditional. Coating is a common technique used to apply Nano-particles onto textiles. The success of nanotechnology in textile applications lies in areas of durability, flexibility, wash ability and softness. The use of nanotechnology allows textiles to become multifunctional and produce fabrics with special functions, including antibacterial, UV-protection, easy clean, water & stain repellent and anti-odour.
Energy equipment: Nanoscales and nanoporous membranes are being used to facilitate production of biomass fuel. Energy transmission could potentially be made much more efficient by using engineered nanomaterials. Throughout the renewable-energy sector, nanotechnology has the potential to increase process efficiencies and process yields, decrease costs and enable energy processes that would not be attainable any other way.
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Blood Groups: ABO
✅ABO grouping is based on the presence or absence of two surface antigens (chemicals that can induce immune response) on the RBCs namely A and B.
✅Similarly, the plasma of different individuals contain two natural antibodies (proteins produced in response to antigens).
✅ABO blood groups are controlled by the gene I. The plasma membrane of the red blood cells has sugar polymers that protrude from its surface and the kind of sugar is controlled by the gene. The gene (I) has three alleles IA, IB and i.
✅The alleles IA and IB produce a slightly different form of the sugar while allele i does not produce any sugar.
✅Because humans are diploid organisms, each person possesses any two of the three I gene alleles.
✅IA and IB are completely dominant over i, in other words when IA and i are present only IA expresses (because i does not produce any sugar), and when IB and i are present IB expresses.
✅But when IA and IB are present together they both express their own types of sugars: this is because of co-dominance. Hence red blood cells have both A and B types of sugars.@civilservicesBaba
🔴 What is a Central Bank Digital Currency (CBDC) ?
👉CBDC is a legal tender issued by a central bank in a digital form.
👉 It is similar to a fiat currency issued in paper and is interchangeable with any other fiat currency
🔴 What is the need for CBDC?
👉 the goal is to provide users with convenience and security of digital as well as the regulated, reserve-backed circulation of the traditional banking system.
🔴 What does this change for citizens?
👉 There are several models proposed by technology experts and evangelists on how the Digital Rupee could be transacted but a formal announcement by the Reserve Bank of India will likely detail how the Digital Rupee will be transacted by citizens.
♦️One chief difference will be that a Digital Rupee transaction will be instantaneous as opposed to the current digital payment experience.
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📰 Current Affairs Capsules for Prelims 2026 | Governance 🌱🏡
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Dear Aspirants,
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✅ Date: Sunday, 3rd May 2026
✅ Format: Full GS & CSAT papers (2 hours each).
✅ Medium: Available in both English and Hindi.
✅ Flexibility: Downloadable Question Papers and OMR sheets for offline practice.
📌Insights:
👉 Detailed performance analysis and answer keys provided.
👉 Compare your score with thousands of other aspirants.
👉 The test will be live on the Prayas AI App.
📌 You may set a reminder to ensure you can participate in this practice session.
Dear Aspirants,
🎯The Full Length Test Challenge is scheduled for this Sunday to help you evaluate your current preparation.
📌Details:
✅ Date: Sunday, 3rd May 2026
✅ Format: Full GS & CSAT papers (2 hours each).
✅ Medium: Available in both English and Hindi.
✅ Flexibility: Downloadable Question Papers and OMR sheets for offline practice.
📌Insights:
👉 Detailed performance analysis and answer keys provided.
👉 Compare your score with thousands of other aspirants.
👉 The test will be live on the Prayas AI App.
📌 You may set a reminder to ensure you can participate in this practice session.
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The National Archives of India digitizing and making public over 20 crore documents on a dedicated portal. This massive effort helps preserve the country’s rich historical records while making them easily accessible to citizens, researchers, and scholars across the world.
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Dark Net, Deep Web and Surface Web
✅"Dark net" is commonly confused with "deep web." The deep web refers to unindexed sites which are unsearchable; in most cases, this is because those sites are protected by passwords.
✅Part of the WWW (World Wide Web) which is not indexed by a search engine like Google is Deep Web and it about 500-600 times larger than the surface web.
✅Surface Web -Also called the Visible Web, Indexed Web, Indexable Web or Lightnet -is that portion of the World Wide Web that is readily available to the general public and searchable with standard web search engines. It is the opposite of the deep web. It only constitutes 4-6% of the whole web. @civilservicesBaba
Nanotechnology
✅Nanotechnology is the term given to those areas of science and engineering where phenomena that take place at dimensions in the nanometre scale are utilised in the design, characterisation, production and application of materials, structures, devices and systems.
✅Nanotechnology primarily refers to the use and creation of particles that are smaller than 100 nanometre.
✅The American physicist and Nobel Prize laureate Richard Feynman introduce the concept of nanotechnology in 1959
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Circular Economy A circular economy is an economic system of closed loops in which raw materials, components and products lose their value as little as possible, renewable energy sources are used and systems thinking is at the core. In this article we will explain this definition in more detail.
Often focus on the use of raw materials or on system change. Definitions that focus on resource use often follow the 3-R approach:
Reduce (minimum use of raw materials)
Reuse (maximum reuse of products and components)
Recycle (high quality reuse of raw materials)
🌀Forest Report (IFSR) 2021
▪️Key pointer about India :
▫️Total Forest Cover = 21.71%
▫️Total Forest & Tree Cover = 24.62%
▪️Largest Forest Cover ( Area wise):-
1. MP
2.Arunachal Pradesh
3.Chhattisgarh
4.Odisha
5.Maharashtra
▪️Total Forest Cover ( %age of total GA) : Top five States are
▫️Mizoram (84.53%)
▫️Arunachal Pradesh (79.33%)
▫️Meghalaya (76.00%)
▫️Manipur (74.34%)
▫️Nagaland(73.90%)
▪️Total mangrove cover- 4,992 sq km.
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Bengaluru, Karnataka, a major technology and manufacturing hub of India, where the high-speed bullet train manufacturing plant ‘Aditya’ has been established by BEML, marking a significant step towards indigenous high-speed rail production in the country
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India’s first women-led FTA was signed with New Zealand, marking a major milestone in inclusive trade policy. The agreement boosts exports by removing tariffs on Indian goods while ensuring sensitive sectors like agriculture and dairy remain protected.
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