🔆 River Names

📍 Ancient Names & Modern Names
✅ Kubhu → Kuram
✅ Kubha → Kabul
✅ Vitastata → Jhelum
✅ Askini → Chenab
✅ Purushni → Ravi
✅ Shatudri → Satluj
✅ Vipasha → Beas
✅ Sadanira → Gandak
✅ Drishdvati → Ghaghara
✅ Gomti → Gomal
✅ Suwastu → Swat
✅ Sindhu → Indus/Sindhu
✅ Sarsuti / Drishtwarti → Ghaghar / Saraswati Rakshi/Chittag
✅ Sushoma → Sohan
✅ Marudvridha → Maruvarman

#history

🔆 Famous Sculpture/Painting: Manjira Player

📍 Monument Era/Dynasty
✅ Surya Mandir, Odisha, Ganga Dynasty

📍 Subject Matter
✅ Manjira player sitting cross-legged on a lotus pedestal.
✅ Wearing a simple garment and is adorned with a few pieces of jewelry.
✅ Holding a pair of manjiras in his hands and is playing them with great skill and dexterity.
✅ Carved from sandstone and is approximately 3 feet tall.
✅ Believed to have been created in the 13th century CE.


#art_and_culture

🔆 Girmitiyas

📍 Context:
India’s External Affairs Minister is visiting Jamaica, Suriname, and Trinidad & Tobago, highlighting India’s deep historical and cultural ties through the Girmitiya communities.

📍 About Girmitiyas

▪ Meaning:
Girmitiyas were Indian indentured labourers who migrated to British colonies during the mid-to-late 19th century for plantation work.

▪ Timeline:
◦ Large-scale migration began after the British Slavery Abolition Act, 1833, which created labour shortages in colonies.

▪ Origin of the Term “Girmit”:
◦ Derived from the mispronunciation of the English word “Agreement”, referring to labour contracts signed by workers.

▪ Other Names:
◦ Also called Jahazis/Jahajis, symbolising their shared ship journey to foreign lands.

📍 Source Regions in India

▪ Most migrants came from:
◦ Eastern United Provinces (present-day Uttar Pradesh)
◦ Bihar

▪ Main reasons for migration:
◦ Poverty
◦ Unemployment
◦ Agrarian distress and poor agricultural conditions

📍 Major Destinations

▪ Caribbean:
◦ Trinidad & Tobago
◦ Guyana
◦ Suriname
◦ Jamaica

▪ Other Regions:
◦ Mauritius
◦ Fiji
◦ South Africa

📍 Key Features of Girmitiya Migration

▪ Migration Conditions:
◦ Though migration promised employment, workers often faced low wages, poor living conditions, and exploitation.

▪ Cultural Continuity:
◦ Preserved Indian traditions through festivals like:
▪ Diwali
▪ Ramleela
▪ Hosay

◦ Maintained folk music traditions using instruments like dholak and harmonium.

▪ Language and Identity:
◦ Languages such as Hindi, Bhojpuri, and Awadhi continue to influence cultural identity in countries like Mauritius, Fiji, and Suriname.

📍 Significance

▪ Girmitiya communities form a strong cultural bridge between India and the Indian diaspora across the Caribbean, Africa, and the Pacific.
▪ They symbolize resilience, cultural preservation, and the global spread of Indian heritage.

#history #prelims #mains

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🔆 India–EU Initiative on EV Battery Recycling & Circular Economy

📍 Why in News
✅ India and European Union (EU) launched a ₹169 crore initiative for:
• EV battery recycling
• Circular economy promotion
• Clean technology cooperation

🔆 About the Initiative

📍 Framework
✅ Launched under India–EU Trade & Technology Council (TTC)
✅ Specifically under Working Group 2: Green & Clean Energy Technologies

📍 Aim
✅ Secure critical raw materials
✅ Accelerate transition towards circular economy
✅ Strengthen India–EU clean technology partnership

📍 Funding
✅ Total funding: €15.2 million (~₹169 crore)
✅ Supported by:
• Horizon Europe (EU side)
• Ministry of Heavy Industries (India side)

🔆 Key Focus Areas

📍 Advanced Recycling Technologies
✅ High-efficiency material recovery
✅ Safe & digitalised battery collection systems
✅ Pilot-scale demonstrations

📍 Critical Minerals
✅ Focus on recovery & reuse of:
• Lithium
• Graphite
• Cobalt

📍 Battery Management
✅ Handling of mixed battery chemistries
✅ Second-life applications for used batteries
✅ Improved logistics & inclusion systems

📍 Joint Pilot Line in India
✅ Real-world validation & industrial deployment of recycling technologies
✅ Collaboration among:
• Researchers
• Industries
• Startups

🔆 About Horizon Europe Programme 🇪🇺

📍 Meaning
✅ EU’s flagship programme for research & innovation

📍 Objectives
✅ Address climate change
✅ Promote UN Sustainable Development Goals (SDGs)
✅ Enhance EU competitiveness & innovation

📍 Three Pillars
✅ Excellent Science → European Research Council (ERC)
✅ Global Challenges & Industrial Competitiveness
✅ Innovative Europe → European Innovation Council (EIC)

📍 Significance
✅ Reduces dependence on imported critical minerals
✅ Promotes sustainable EV ecosystem
✅ Supports green growth & circular economy
✅ Strengthens India–EU strategic technology cooperation

#goverment_schemes

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🔆 Folk Theatre of India

📍 Northern & Western India

✅ Bhand Pather (Kashmir)
Humour-based theatre using satire, wit & parody; incorporates instruments like surnai, nagara & dhol

✅ Bhaona (Assam)
Presentation of Ankia Naat; begins in Sanskrit by Sutradhar, later shifts to Brajaboli/Assamese

✅ Bhavai (Gujarat)
Popular in Kutch & Kathiawar; blends devotional & romantic themes

✅ Garodas (Gujarat)
Uses painted pictures to narrate stories of romance & valour

✅ Kariyila (Himachal Pradesh)
Open-air night theatre with small plays & skits

✅ Powada (Maharashtra)
Ballads on Shivaji’s heroic deeds; sung by Gondhalis & Shahirs

✅ Tamaasha (Maharashtra)
Female performer (Murki) central; features classical music, fast footwork & expressive gestures

📍 Southern India

✅ Burra Katha (Andhra Pradesh)
Oral storytelling by main narrator + two co-artists; uses Burra percussion instrument

✅ Chavittu Natakam (Kerala)
17th-century Christian art form; known as “stamping drama”

✅ Krishnattam (Kerala)
Originated under King Manavada of Calicut; eight plays over eight days

✅ Kuravanji (Tamil Nadu)
Dance-drama on a love-struck heroine; performed in Bharatanatyam style

✅ Mudiyettu (Kerala)
Ritual theatre in Kali temples; depicts Bhadrakali’s victory over Darika

✅ Therukoothu (Tamil Nadu)
Harvest-linked theatre; cycle of eight plays on Draupadi

✅ Villu Pattu (Deccan)
Musical narration of Ramayana stories

✅ Yakshagana (Karnataka)
Open-air theatre based on Mahabharata & Ramayana

📍 Eastern India

✅ Dashavatara (Konkan & Goa)
Depicts ten incarnations of Lord Vishnu; stylised masks & make-up

✅ Daskathia (Odisha)
Two narrators — Gayaka & Palia; musical accompaniment with kathia

✅ Oja-Pali (Assam)
Linked to Manasa festival; Oja (lead narrator) & Pali (chorus)

📍 North-Central Belt

✅ Raasleela (Uttar Pradesh)
Based on Lord Krishna’s legends; blends prose dialogue & songs

✅ Swang (Punjab & Haryana)
Music-based evolving into prose; styles in Rohtak (Haryanvi) & Hathras (Brajbhasha)

📍 Other Important Forms
✅ Maach (Madhya Pradesh)
✅ Naqal/Bhand (Punjab)
✅ Nautanki (Uttar Pradesh)
✅ Pagati Veshalu (Telangana & Andhra Pradesh)
✅ Padayani (Kerala)
✅ Tal-Maddale (Karnataka)
✅ Bayalata (Karnataka)

📌 UPSC Relevance
✅ GS-1 – Indian Culture
✅ Important for Prelims matching questions
✅ Value addition for Mains answers on cultural diversity

#prelims
#art_and_culture

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🔆 Electronic Toll Collection (ETC) on Highways

📍 Introduction
✅ ETC uses technologies like FASTag, RFID, GNSS, and ANPR for automatic toll payment without manual cash collection.
✅ India can save nearly ₹12,000 crore annually in fuel and man-hours through complete FASTag-based tolling.

📍 Technologies Used
✅ RFID (Radio Frequency Identification): FASTag stickers enable automatic toll deduction at plazas.
✅ GNSS/GPS: Tracks vehicle movement for distance-based toll collection.
✅ ANPR (Automatic Number Plate Recognition): Cameras capture vehicle number plates for seamless payments.

📍 Advantages
✅ Reduces congestion and waiting time at toll plazas
✅ Saves fuel, time, and operational costs
✅ Promotes transparency and minimizes leakages
✅ Enables smoother traffic flow and lowers emissions

📍 Limitations
✅ Dependence on digital and internet infrastructure
✅ Technical glitches and incorrect deductions
✅ Privacy concerns due to vehicle tracking
✅ Digital divide affecting rural and low-income users

📍 Proposed Changes for Seamless Tolling
✅ GNSS-based Satellite Tolling: Vehicles pay toll without stopping at booths
✅ On-Board Units (OBUs): Non-transferable devices installed in vehicles
✅ Multi-Lane Free Flow (MLFF): Combines RFID, GNSS, and ANPR for uninterrupted tolling
✅ Unified national toll payment platform across highways

📍 Potential Hazards
✅ Cybersecurity threats and data breaches
✅ System failures causing wrongful deductions
✅ Possible exclusion of digitally unaware users

🔆 Conclusion
✅ ETC can transform highway mobility through efficiency, transparency, and reduced congestion. However, strong cybersecurity, reliable infrastructure, and digital inclusion are essential for a safe and seamless transition.

#GS3
#prelims
#science_technology
#science_and_technology

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Ifos prelims 2025 cut off - 105.34

🔆 Scramjet Propulsion System

✅ DRDO successfully tested its Actively Cooled Full Scale Scramjet Combustor with a record run-time of 1,200+ seconds (earlier 700 seconds).

📍 About Scramjet Propulsion System
✅ Scramjet stands for Supersonic Combustion Ramjet

✅ It is an advanced air-breathing hypersonic jet engine designed to operate at speeds greater than Mach 5.

📍 Operating Mechanism
✅ Uses the vehicle’s high-speed forward motion to:
◦ Compress incoming air into the combustor
◦ Enable supersonic combustion of fuel

✅ Unlike conventional rockets, it uses atmospheric oxygen as oxidizer during flight.

📍 Fuel Used
✅ Common fuels include:
◦ Hydrogen fuel
◦ Advanced liquid hydrocarbon endothermic fuels

📍 Key Advantages
✅ Reduces overall vehicle weight by eliminating onboard oxidizer
✅ Enables low-cost and reusable access to space
✅ Provides foundation for hypersonic cruise missiles
✅ Highly efficient at hypersonic speeds

📍 Significance
✅ Strengthens India’s capabilities in:
◦ Hypersonic technology
◦ Advanced missile systems
◦ Future reusable launch vehicles
◦ Strategic defence preparedness

#GS3
#prelims
#science_technology
#science_and_technology

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🔆 Endangered Languages in India & Government Efforts

📍 Context
✅ India is one of the world’s most linguistically diverse countries
✅ UNESCO lists 197 endangered languages in India
✅ Languages fall into categories: vulnerable, endangered, severely endangered, or extinct

📍 Examples of Critically Endangered Languages
✅ Great Andamanese – Andaman Islands
✅ Toda – Nilgiri Hills (Tamil Nadu)
✅ Asur – Jharkhand
✅ Koro – Arunachal Pradesh

🔆 Government Initiatives for Language Preservation

📍 Scheme for Protection and Preservation of Endangered Languages (SPPEL)
✅ Focus: Languages spoken by fewer than 10,000 people
✅ Aim: Documentation, research, and promotion
✅ 117 languages prioritised in the first phase

📍 UGC-supported Measures
✅ Funding for academic research on indigenous languages
✅ Establishment of Centres for Endangered Languages in Central Universities
✅ Promotion of interdisciplinary linguistic studies

📍 Training & Documentation Efforts
✅ Regular training programmes for linguists and researchers
✅ Preparation of:
 • Dictionaries
 • Grammar books
 • Audio-visual recordings
✅ Focus on long-term language survival and revival

🔆 Why It Matters
✅ Language loss = loss of oral history, folklore, ecological knowledge
✅ Preserving languages strengthens cultural diversity and identity
✅ Aligns with constitutional values of pluralism and inclusiveness

#goverment_schemes

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