CSE EXAM upsc prelims mains CAPF CDS NDA
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Day 58: 14 february target:

Environment:
Topics -
Revision of whole environment
PYQs
Backlogs

Current Affairs: December 2025
Environment

#UpscRevisionProgram

After completion of target post 'DONE'
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Ocean currents

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โค1
#Goodmorning 

โณ99 days  left CSP26[ 24-05-26]
โณ188 days left CSM26 [ 21-08-26]

โณ295 days left UPPSC prelims 6 December
โณ162 days left 72nd BPSC PRELIMS 26 July
โณ155 days left CAPF AC 19 July
โณ141 days left UKPSC PRELIMS 5 July
โณ114 days Left OPSC prelims 07 June
โณ107 days  left MPSC (MH) prelims [ 31-05-26]
โณRAS PRELIMS may
โณ71 days Left MPPSC (MP) Prelims 26 April
โณ71 days Left HCS Prelims 26 April
โณ70 days Left bpsc mains 25 April
โณ57 days Left CDS1 /NDA 12 April
โณ45 days Left PPSC mains 1 April
โณ42 days left UPPSC mains 29 March
โณ24 days Left JPSC PRELIMS 8 March
โณ08 days CGPSC prelims 22 February

#Target
#TargetOnlyone
#Accountability

https://t.me/anmolvachan1
โค4
๐Ÿ”† CURRENT AFFAIRS โ€” 13 FEB 2026

๐Ÿ”† REGULATORY BODIES

๐Ÿ“ RBI โ€“ Digital Payments Index (DPI)
โœ… Base Year: March 2018 = 100
โœ… Sept 2025: 516.76 (โ†‘ from 493.22 in March 2025)
โœ… Highest weight: Payment Performance (45%)
๐Ÿ“Œ Indicates strong digital payment penetration

๐Ÿ“ Revised Kisan Credit Card (KCC) 2026 (Draft)
โœ… Crop tenure: Short (12 months), Long (18 months)
โœ… KCC tenure extended to 6 years
โœ… Drawing limits aligned with Scale of Finance
โœ… Tech expenses allowed (soil testing, weather services, GAP certification)


๐Ÿ”† INTERNATIONAL

๐Ÿ“ WIPO โ€“ Global R&D Spending 2024
โœ… India ranks 7th globally
โœ… Global R&D: $2.87 trillion
โœ… R&D share of global GDP โ‰ˆ 2%

๐Ÿ“ Cyclone Gezani โ€“ Madagascar
โœ… Wind speed: 195+ km/h
โœ… 2,700+ displaced

๐Ÿ”† NATIONAL

๐Ÿ“ CPI Series (Base 2024 = 100) โ€“ MoSPI
โœ… Headline Inflation: 2.75%
โœ… Food Inflation: 2.13%
โœ… Housing Inflation: 2.05%
๐Ÿ“Œ New structure: 12 divisions, 358 items (COICOP 2018)

๐Ÿ“ Indiaโ€™s First National Biobank (LSD Rare Diseases)
โœ… Funded by DBT
โœ… Covers 530 patients, 27 disorders
โœ… Lead: FRIGE, Ahmedabad

๐Ÿ“ Bharat Bodhan AI Conclave 2026
โœ… Launched Bodhan AI Centre of Excellence
โœ… Focus: EduAI Stack, AI for School/Higher Education
โœ… IIT Bombayโ€“Columbia University MoU

๐Ÿ“ NITI Frontier Tech Hub Roadmap
โœ… โ€œTechnology Services โ€“ Reimagination Aheadโ€
๐ŸŽฏ Scale tech services from $265B โ†’ $750โ€“850B by 2035

๐Ÿ“ India to Get Two New Telescopes (Ladakh)
โœ… NLST (2-metre solar telescope) โ€“ Merak
โœ… NLOT (13.7-metre optical-infrared telescope)

๐Ÿ”† DEFENCE

๐Ÿ“ DAC Clears โ‚น3.60 Lakh Crore Defence Proposals
โœ… MRFA (Rafale), Combat Missiles
โœ… Army vehicle overhaul (T-72, ICVs)
โœ… Navy โ€“ P-8I Aircraft
โœ… Coast Guard โ€“ 8 Dornier 228 (โ‚น2,312 cr contract with HAL)

๐Ÿ“ Indian Navy Takes Command of CTF-154
โœ… Under Combined Maritime Forces (47 nations)
โœ… Commander: Commodore Milind M. Mokashi

๐Ÿ”† MoUs

๐Ÿ“ MoES & Puducherry Govt
โœ… Focus: Marine research, Blue Economy
โœ… 6 areas: Fisheries, Offshore wind, Desalination, MSP
๐Ÿ“… Validity: 5 years

๐Ÿ”† STATES

๐Ÿ“ Kerala โ€“ Sthree Suraksha Scheme
โœ… โ‚น1,000/month pension
๐ŸŽฏ Women & transgender (35โ€“60 yrs)

๐Ÿ“ Odisha Dolphin Census 2026
โœ… 765 dolphins (highest in 5 years)
โœ… Irrawaddy Dolphin โ€“ Endangered (IUCN)

๐Ÿ”† SCHEMES (MoFPI)

๐Ÿ“ PMKSY โ€“ โ‚น6,520 crore
๐Ÿ“ PLISFPI โ€“ โ‚น10,900 crore
๐Ÿ“ PMFME โ€“ โ‚น10,000 crore
๐ŸŽฏ Strengthen food processing & supply chain

๐Ÿ”† IMPORTANT DAYS

๐Ÿ“… 12 Feb โ€“ International Day for Prevention of Violent Extremism
Theme: Preventing Extremism in Age of Emerging Technologies

๐Ÿ“… 13 Feb โ€“ World Radio Day
Theme 2026: Radio & AI: AI is a tool, not a voice

๐Ÿ”† SCIENCE & TECH

๐Ÿ“ IN-SPACe Selects 3 Startups for Satellite Bus Platforms
โœ… Astrome, Azista, Dhruva Space
โœ… โ‚น5 crore grant each

๐Ÿ”† SPORTS

๐Ÿ“ Asian Shooting Championships 2026
๐Ÿฅ‡ Aishwary Pratap Singh Tomar โ€“ World Record (362.0)
๐Ÿฅˆ Niraj Kumar
๐Ÿฅ‰ Akhil Sheoran
๐Ÿ† India clean sweep in 50m

#CurrentAffairs

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โค6
๐Ÿ”† Ballistic Missile vs Cruise Missile โ€“ Quick Comparison (Prelims Ready)

๐Ÿ“ Trajectory
โœ… Ballistic Missile: Ballistic (projectile-like path)
โœ… Cruise Missile: Atmospheric, guided flight

๐Ÿ“ Target Selection
โœ… Ballistic: Predetermined targets
โœ… Cruise: Can engage mobile targets

๐Ÿ“ Target Size
โœ… Ballistic: Best for large targets
โœ… Cruise: Small, precise, mobile targets

๐Ÿ“ Guidance
โœ… Ballistic: Brief guided phase, mostly gravity-driven
โœ… Cruise: Self-navigating throughout flight

๐Ÿ“ Altitude
โœ… Ballistic: High elevation (exo/endo-atmospheric phases)
โœ… Cruise: Very low altitude (terrain-hugging)

๐Ÿ“ Tracking
โœ… Ballistic: Easier to track
โœ… Cruise: Difficult to track due to low-altitude flight

๐Ÿ“ UPSC Relevance
โœ… GS3 โ€“ Defence | Missile Technology | Security

๐Ÿ“Œ Prelims One-liner:
โžก๏ธ Cruise missiles fly low and guided, making them harder to detect, while ballistic missiles follow a high, ballistic trajectory suited for large targets.

#GS3
#prelims
#science_technology
#science_and_technology

Join https://t.me/PIB_UPSC
https://t.me/upsc_science_and_technology
โค2๐Ÿ”ฅ1
RAS prelims strategy

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๐Ÿ‘1
๐Ÿ”† Forty-Second Constitutional Amendment Act, 1976

๐Ÿ“ Key Additions:
โœ… Preamble: Added "socialist," "secular," and "integrity" to define India's core values.
โœ… Directive Principles (Articles 39A, 43A, 48A): Introduced:
๐ŸŸข Equal justice and free legal aid.
๐Ÿญ Participation of workers in industrial management.
๐ŸŒณ Protection of environment, forests, and wildlife โœ… Fundamental Duties (Article 51A): Introduced Part IV-A, listing ten Fundamental Duties for citizens. โœ… Administrative Tribunals (Part XIV-A): Added Article 323A (administrative tribunals) and Article 323B (tribunals for other matters). โœ… Article 368 (Clauses 4 & 5): Made constitutional amendments beyond judicial scrutiny.

๐Ÿ“ Key Changes:
โœ… Directive Principles Supremacy: Amended Article 31C to give Directive Principles precedence over Fundamental Rights in certain cases.
โœ… Judicial Powers Curtailed: Restricted judicial review by Supreme Court and High Courts.
โœ… Executive Powers Enhanced: Made the President bound by the Cabinet's advice.
โœ… Tenure of Legislatures: Extended the term of Lok Sabha and State Assemblies from 5 to 6 years.
โœ… Presidentโ€™s Rule: Increased its duration from 6 months to 1 year.
โœ… Parliamentary Procedure: Removed the requirement of quorum for parliamentary and state legislative sessions.
โœ… Lok Sabha Seats Frozen: Froze representation based on the 1971 census until 2001.
โœ… Seventh Schedule: Moved five subjects (education, forests, protection of wildlife, weights and measures, and administration of justice) from the State List to the Concurrent List.

๐Ÿ“ Significance:
โœ… Strengthened the Directive Principles to emphasize socio-economic reforms.
โœ… Introduced Fundamental Duties to promote civic responsibility among citizens.
โœ… Enhanced centralization of powers but raised concerns about weakening the federal structure.

The Forty-Second Constitutional Amendment Act, 1976, often referred to as the "Mini-Constitution", brought sweeping changes to Indiaโ€™s governance framework, reflecting the authoritarian tendencies of the Emergency period while emphasizing the goals of a socialist and secular state.

#polity #prelims

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โค5
Tribal /peasant movements

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๐Ÿ”† Important Temples of Hampi (Vijayanagara Architecture)

๐Ÿ“ Hazara Temple (Hampi)
โœ… Probably meant for exclusive use of the king and royal family
โœ… Sculpted wall panels depict scenes from the Ramayana

๐Ÿ“ Virupaksha Temple (Hampi)
โœ… Earliest shrine dated to 9thโ€“10th centuries
โœ… Substantially enlarged during the Vijayanagara Empire

โœ… The hall in front of the main shrine was built by Krishnadeva Raya to mark his accession
โžก๏ธ Decorated with delicately carved pillars
โžก๏ธ He also constructed the eastern gopuram

๐Ÿ“ Vittala Temple (Hampi)
โœ… Principal deity: Vittala (a form of Vishnu, widely worshipped in Maharashtra)
โœ… Characteristic feature: Chariot streets extending in a straight line from the temple gopuram

๐Ÿ“Œ UPSC Relevance
โœ… GS-1 โ€“ Art & Culture (Temple Architecture)
โœ… Linked to Vijayanagara Empire
โœ… Important for Prelims (Templeโ€“Feature matching)

#prelims
#art_and_culture

https://t.me/Studytoday1
https://t.me/upsc_art_and_culture
โค1๐Ÿ”ฅ1
๐Ÿ”† Capillarity [UPSC 2012]

๐Ÿ“ Concept
โœ… Capillarity is the phenomenon by which a liquid rises or falls in a narrow space due to intermolecular forces.
โœ… Occurs when adhesion (liquidโ€“solid force) exceeds cohesion (liquidโ€“liquid force).
โœ… Responsible for capillary rise in thin tubes.

๐Ÿ“ Application
โœ… Plants use capillarity to transport water to different parts.

๐Ÿ”† Transplanting of Plants [UPSC 2013]

๐Ÿ“ Importance
โœ… Essential for crops like rice, tomato, onion, brinjal, marigold, chrysanthemum, papaya, tobacco
โœ… Ensures better root establishment
โœ… Protects seedlings from pests & weeds
โœ… Optimizes nursery space utilization

๐Ÿ“ In Rice Cultivation
โœ… Traditionally used for efficient water management
โœ… Promotes growth in waterlogged conditions

๐Ÿ“ System of Rice Intensification (SRI)
โœ… Eliminates need for conventional transplantation
โœ… Involves planting single, young seedlings at wider spacing
โœ… Minimizes water usage by keeping soil moist (not continuously flooded)
โœ… Enhances root growth, canopy development & microbial activity
โœ… Reduces seed, water & labour inputs while improving yields

โžก๏ธ Considered a sustainable & resource-efficient alternative

๐Ÿ”† Vegetative Propagation of Plants [UPSC 2014]

๐Ÿ“ Definition
โœ… A form of asexual reproduction
โœ… New plants grow from stems, roots, leaves or buds
โœ… Produces genetically identical offspring
โœ… Enables faster propagation

๐Ÿ“ Examples
โœ… Potato โ€“ Tubers
โœ… Sugarcane โ€“ Stem cuttings
โœ… Banana โ€“ Suckers
โœ… Ginger & Turmeric โ€“ Rhizomes
โœ… Onion & Garlic โ€“ Bulbs
โœ… Sweet Potato โ€“ Root tubers

๐Ÿ“ Ornamental Plants
โœ… Rose, Hibiscus, Jasmine โ€“ Stem cuttings
โœ… Bryophyllum โ€“ Leaf buds

๐Ÿ“Œ UPSC Relevance
โœ… GS-3 โ€“ Agriculture & Plant Physiology
โœ… Important for Prelims (Concept + Examples based questions)

#GS3
#prelims
#science_technology
#science_and_technology

Join https://t.me/PIB_UPSC
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โค5๐Ÿ”ฅ1
Day 59: 15 february target:

Environment:
Topics -
Sectional test

Backlogs

#UpscRevisionProgram

After completion of target post 'DONE'
In comment section. Targets are decided as per practical approach. In remaining time, you can study whatever you want.
Thank you.

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https://t.me/upsc_answer_written
๐Ÿ‘3๐Ÿ”ฅ1
๐Ÿ”† Weekly Current Affairs | February 2026 โ€“ 1st Week
(1st โ€“ 7th February 2026)

๐Ÿ›๏ธ Economy & Banking

๐Ÿ“ RBI MPC โ€“ February 2026 (59th Meeting)
โœ… Repo Rate unchanged at 5.25%
โœ… Neutral stance continued
โœ… FY26 GDP Growth: 7.4%
โœ… FY26 Inflation projection: 2.1%

๐Ÿ“ India Forex Reserves Touch Historic High
โœ… Reached $723.8 billion (Jan 30)
โœ… Provides 11+ months import cover

๐Ÿ“ Risk-Based Deposit Insurance Premiums (From April 1)
โœ… Premium linked to bankโ€™s risk profile
โœ… Implemented by DICGC
โœ… Replaces flat-rate system (since 1962)

๐Ÿ“ โ‚น2000 Note Withdrawal Status
โœ… 98.42% notes returned
โœ… โ‚น5,609 crore still in circulation (Jan 31, 2026)

๐Ÿ“ UPI Record โ€“ January 2026
โœ… Value: โ‚น28.33 trillion
โœ… Volume: 21.70 billion transactions
๐Ÿ“Œ Source: NPCI

๐Ÿ’ฐ Union Budget 2026โ€“27 Highlights

๐Ÿ“ Fiscal & Debt Targets
โœ… Fiscal Deficit: 4.3% of GDP
โœ… Debt-to-GDP: 55.6% (FY27)
๐ŸŽฏ Target: 50% ยฑ1% by FY31

๐Ÿ“ Capital Expenditure
โœ… โ‚น12.2 lakh crore (4.4% of GDP)

๐Ÿ“ Defence Allocation
โœ… โ‚น7.85 lakh crore (Highest among Ministries)
โœ… 15% increase over last year

๐Ÿ“ Railways Allocation
โœ… โ‚น2.92 trillion outlay
โœ… High-Speed Corridors announced

๐Ÿ“ Biopharma Shakti Plan
โœ… โ‚น10,000 crore outlay
๐ŸŽฏ Make India a global biologics hub

๐Ÿ“ Nuclear Research Boost
โœ… โ‚น2,410 crore allocation
โœ… Major support to BARC & IGCAR

๐Ÿ“ MSME โ€˜Championโ€™ Strategy
โœ… โ‚น10,000 crore SME Growth Fund
โœ… Mandatory TReDS for CPSE purchases

๐ŸŒ International Affairs

๐Ÿ“ EU Carbon Border Adjustment Mechanism (CBAM)
โœ… Fully enforced from Jan 1, 2026
โœ… Covers steel, aluminium, cement, fertilisers
โš ๏ธ Impact on Indian exports

๐Ÿ“ US Tariffs on India Reduced
โœ… From 25% โ†’ 18%

๐Ÿ“ FORGE Initiative (USA)
โœ… Successor to Minerals Security Partnership
๐ŸŽฏ Secure critical mineral supply chains

๐Ÿ“ India Pays $35.18 million to UN Budget
โœ… Secures place on UN โ€œHonour Rollโ€

๐Ÿ‡ฎ๐Ÿ‡ณ National Developments

๐Ÿ“ NHIS & ASISSE Launch (April 2026)
โœ… Indiaโ€™s first National Household Income Survey
โœ… Fully digital (CAPI-based)

๐Ÿ“ PRAGATI โ€“ 50th Meeting Chaired by PM
๐ŸŽฏ Focus: Project monitoring & grievance redressal

๐Ÿ“ SabhaSaar Initiative
โœ… AI-based Gram Sabha meeting summarisation
โœ… Adopted by 1.11 lakh Gram Panchayats

๐Ÿ“ DRAP โ€“ Zero Dumpsite Target by Oct 2026
โœ… Covers 214 priority dumpsites
โ™ป๏ธ Linked to Swachh Bharat Mission

๐Ÿ“ Battery Pack Aadhaar (Draft Guidelines)
๐ŸŽฏ Unique digital ID for EV & Industrial batteries

๐Ÿ›ก๏ธ Defence & Security

๐Ÿ“ Agnipath Allocation Up 58%
โœ… โ‚น17,396 crore (FY27)

๐Ÿ“ Agni-III Missile Test Successful
๐ŸŽฏ Range: 3,000โ€“3,500 km

๐Ÿ“ Exercise KHANJAR-XIII
๐Ÿ“ Indiaโ€“Kyrgyzstan Special Forces exercise
๐Ÿ“ Venue: Assam

๐Ÿ“ Vayu Shakti 2026
๐Ÿ“ Pokaran Field Firing Range, Rajasthan
โœˆ๏ธ 120+ aircraft participated

๐Ÿ”ฌ Science & Technology

๐Ÿ“ Indiaโ€™s First Government AI Clinic
๐Ÿ“ GIMS, Greater Noida
๐ŸŽฏ AI integration in public healthcare

๐Ÿ“ MCP Server by NSO
๐ŸŽฏ AI-ready access to datasets (PLFS, CPI, IIP etc.)

๐Ÿ“ Haven-1
๐Ÿš€ Worldโ€™s first fully private space station (Vast Space)

๐Ÿ“ Solid Fuel Ducted Ramjet Test (DRDO)
๐ŸŽฏ Long-range supersonic missile tech

๐ŸŒฟ Environment & Biodiversity

๐Ÿ“ Patna Bird Sanctuary & Chhari-Dhand
โœ… Added to Ramsar list
๐Ÿ‡ฎ๐Ÿ‡ณ Total Ramsar Sites: 98

๐Ÿ“ India Most Vulnerable to Extreme Heat (Oxford Study)
โš ๏ธ 3.79 billion people exposed globally by 2050

๐Ÿ… Sports Highlights

๐Ÿ“ Australian Open 2026
๐Ÿ† Menโ€™s Champion: Carlos Alcaraz
๐Ÿ† Womenโ€™s Champion: Elena Rybakina

๐Ÿ“ ICC U-19 World Cup 2026
๐Ÿ† India won 6th title
๐Ÿ”ฅ Vaibhav Suryavanshi: 175 (Final)

๐Ÿ“ Asian Shooting Championships 2026
๐Ÿฅ‡ India topped medal table (10 Gold)

#CurrentAffairs

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โค11๐Ÿ”ฅ4๐Ÿ‘1
#Goodmorning 

โณ98 days  left CSP26[ 24-05-26]
โณ187 days left CSM26 [ 21-08-26]

โณ294 days left UPPSC prelims 6 December
โณ161 days left 72nd BPSC PRELIMS 26 July
โณ154 days left CAPF AC 19 July
โณ140 days left UKPSC PRELIMS 5 July
โณ113 days Left OPSC prelims 07 June
โณ106 days  left MPSC (MH) prelims [ 31-05-26]
โณRAS PRELIMS may
โณ70 days Left MPPSC (MP) Prelims 26 April
โณ70 days Left HCS Prelims 26 April
โณ69 days Left bpsc mains 25 April
โณ56 days Left CDS1 /NDA 12 April
โณ44 days Left PPSC mains 1 April
โณ41 days left UPPSC mains 29 March
โณ23 days Left JPSC PRELIMS 8 March
โณ07 days CGPSC prelims 22 February

#Target
#TargetOnlyone
#Accountability

https://t.me/anmolvachan1
โค4๐Ÿ”ฅ1
๐Ÿ”† Medieval Indian Scholars & Their Works

๐Ÿ“ Ziauddin Barani
โœ… Fatwa-i-Jahandari โ€“ Exemplifies refined Persian prose writing
โœ… Tarikh-i-Firoz Shah โ€“ Historical account of the Tughlaq dynasty

๐Ÿ“ Minhaj-us-Siraj
โœ… Tabaqat-i-Nasari โ€“ Comprehensive history of Muslim dynasties up to 1260 AD

๐Ÿ“ Zia Nakshabi
โœ… Pioneer in translating Sanskrit stories into Persian
โœ… Author of Tutinama โ€“ Tales of a Parrot (collection of short stories

๐Ÿ“ Maldhar Basu
โœ… Bengali poet; author of Sri-Krishna Vijaya
โœ… Received patronage from Bengal Sultans
โžก๏ธ Conferred the title Gunaraja Khan

๐Ÿ“ Firishta
โœ… Gulshan-i-Ibrahimi (Tarikh-i-Firishta)
โžก๏ธ Narrative of events from Mahmud of Ghazni (11th century)
โžก๏ธ Up to the reign of Ibrahim Adil Shah II of Bijapur

๐Ÿ“Œ UPSC Relevance
โœ… GS-1 โ€“ Medieval Indian History
โœ… Important for Prelims (Scholarโ€“Work matching)
โœ… Useful for Mains (Historiography & Persian sources)

#history #prelims #mains

Join https://t.me/CSE_EXAM https://t.me/Upsc_4_history
โค4๐Ÿ”ฅ3
๐Ÿ”† Harvest Festivals of India

๐Ÿ“ Context
โœ… Traditional harvest festivals are being celebrated across India
โœ… They mark:
โ€ข Change of seasons
โ€ข Sunโ€™s northward journey (Uttarayana)
โ€ข Completion of agricultural harvest

๐Ÿ“ Significance of Harvest Festivals
โœ… Celebrate agrarian economy and farmer community
โœ… Reflect solar movements and seasonal cycles
โœ… Promote social cohesion, gratitude, and cultural continuity

๐Ÿ”† Major Traditional Harvest Festivals

๐Ÿ“ Makar Sankranti (Maharashtra)
โœ… Marks the Sunโ€™s transition into Capricorn (Makara Rashi)
โœ… Associated with sesame sweets, charity, and community bonding

๐Ÿ“ Uttarayana (Gujarat & Rajasthan)
โœ… Famous for kite flying traditions
โœ… Symbolises joy, optimism, and longer daylight hours

๐Ÿ“ Pongal (Tamil Nadu)
โœ… Four-day harvest festival
โ€ข Bhogi โ€“ discarding old, welcoming new
โ€ข Thai Pongal โ€“ cooking rice-lentil dish Pongal
โ€ข Mattu Pongal โ€“ honouring cattle
โ€ข Kaanum Pongal โ€“ social gatherings
โœ… Expresses gratitude to Sun, rain, land, and cattle

๐Ÿ“ Lohri (Punjab)
โœ… Celebrated a day before Makar Sankranti
โœ… Marks Rabi crop harvest
โœ… Bonfires, folk songs, Bhangra & Gidda

๐Ÿ“ Magh Bihu (Assam)
โœ… Celebrates end of harvest season
โœ… Community feasts, traditional sports
โœ… Bonfires called Meji

๐Ÿ“ Kanuma (Telangana)
โœ… Festival of gratitude towards agriculture and farmers
โœ… Honours cattle and agrarian tools

#prelims
#art_and_culture

https://t.me/Studytoday1
https://t.me/upsc_art_and_culture
โค5๐Ÿ”ฅ1
๐Ÿ”† Ancient Scripts of India

๐Ÿ“ Brahmi Script
โœ… Precursor to many modern Indian scripts โ€“ Devanagari, Tamil, Telugu, Kannada, Odia, Assamese, Bengali
โœ… Written left to right

๐Ÿ“ Grantha Script
โœ… Widely used (6thโ€“20th century) in Tamil Nadu & Kerala
โœ… Used for writing Sanskrit & Manipravalam
โœ… Evolved from Brahmi; precursor to Malayalam, Tigalari, Sinhala

๐Ÿ“ Gupta Script
โœ… Associated with Gupta Empire
โœ… Descended from Brahmi
โœ… Gave rise to Nagari, Sharada, Siddham, Devanagari, Gurmukhi, Assamese, Bengali, Tibetan scripts

๐Ÿ“ Gurmukhi Script
โœ… Standardised in 16th century by Guru Angad
โœ… Derived from Sarada script
โœ… Used for Guru Granth Sahib & Punjabi language

๐Ÿ“ Indus Script
โœ… Script of the Indus Valley Civilization
โœ… Comprises symbols; not deciphered yet

๐Ÿ“ Kharosthi Script
โœ… Sister script of Brahmi
โœ… Used in ancient Gandhara
โœ… Deciphered by James Prinsep
โœ… Written mostly right to left
โœ… Numerals similar to Roman numerals

๐Ÿ“ Modi Script
โœ… Used historically for Marathi
โœ… Official script of Maharashtra till 20th century
โœ… Also used for Urdu, Kannada, Gujarati, Hindi, Tamil

๐Ÿ“ Sarada Script
โœ… Developed around 8th century
โœ… Written in Abugida style
โœ… Used for Sanskrit & Kashmiri
โœ… Now limited to ceremonial use

๐Ÿ“ Urdu Script
โœ… Written right to left
โœ… Modified Perso-Arabic alphabet
โœ… Influenced by Nastaliq style
โœ… Extended form Shahmukhi used for Punjabi & Saraiki

๐Ÿ“ Vatteluttu Script
โœ… Developed from Tamil-Brahmi
โœ… Written in Abugida style
โœ… Used for writing Granthi, Pallava & Tamil scripts

๐Ÿ”† Language & Manuscript Initiatives

๐Ÿ“ National Translation Mission (2008)
โœ… Promote translation across Indian languages
โœ… Implemented by CIIL

๐Ÿ“ National Dictionary of Indian Languages (2008)
โœ… Compile comprehensive dictionaries
โœ… Implemented by CIIL, Mysuru

๐Ÿ“ Mission Bhashini
โœ… Launched by MeitY
โœ… Focus on AI/NLP, speech recognition, translation
โœ… Implemented by C-DAC

๐Ÿ“ National Mission for Manuscripts (2003)
โœ… Preserve & digitise ancient manuscripts
โœ… Implemented by IGNCA

๐Ÿ“Œ UPSC Relevance
โœ… GS-1 โ€“ Art & Culture
โœ… Important for Prelims (Scriptโ€“Feature matching)
โœ… Linked to language preservation & cultural heritage

#prelims
#art_and_culture

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๐Ÿ”† Life Cycle of a Star

๐Ÿ“ Context
โœ… Scientists recently captured the clearest view of a star collapsing directly into a black hole without exploding as a supernova โ€” a rare phenomenon termed โ€œfailed supernova.โ€

๐Ÿ“ Birth Stage
โœ… Molecular Clouds (Nebulae): Stars originate in vast, cold clouds of gas and dust.
โœ… Protostar Formation: Gravity pulls dense regions together, causing collapse and formation of a protostar.
โœ… Increasing temperature and pressure in the core prepare the star for nuclear fusion.

๐Ÿ“ Life Stage (Main Sequence)
โœ… Nuclear Fusion Begins: Hydrogen fuses into helium in the core, releasing enormous energy.
โœ… Hydrostatic Equilibrium: Outward radiation pressure balances inward gravitational pull.
โœ… This is the longest and most stable phase of a starโ€™s life (e.g., Sun is currently in this phase).

๐Ÿ“ Death Stage

โœ… Low-Mass Stars (like the Sun)
โ€ข Expand into Red Giants
โ€ข Shed outer layers forming a Planetary Nebula
โ€ข Core remains as a White Dwarf, which gradually cools

โœ… High-Mass Stars
โ€ข Fuse heavier elements up to iron
โ€ข Core collapse occurs (iron fusion does not release energy)
โ€ข Leads to a Supernova Explosion
โ€ข Remnant becomes a Neutron Star or Black Hole

๐Ÿ“ Key Insight
โœ… In rare cases, very massive stars may collapse directly into a black hole without a visible supernova explosion.

#GS3
#prelims
#science_technology
#science_and_technology

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Day 60: 16 february target:

Science and Technology
Topics:
Space technology
Bio-technology
Defence
Health

Current Affairs: june, july 2025
Related

#UpscRevisionProgram

After completion of target post 'DONE'
In comment section. Targets are decided as per practical approach. In remaining time, you can study whatever you want.
Thank you.


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