30 July 2026 - "Daily Current Affairs" Updates

01  Ancient Buddhist Site of Sarnath   |   GS 1 — Art & Culture

WHY IN NEWS?

Sarnath was inscribed on the UNESCO World Heritage List during the 48th session of the World Heritage Committee in the Republic of Korea. India now has 45 World Heritage Sites.

30-SECOND SNAPSHOT

Sarnath, near Varanasi in Uttar Pradesh, is where Gautama Buddha delivered his first sermon after attaining enlightenment at Bodh Gaya.

The event began Dharmachakra Pravartan and marked the establishment of the Buddhist Sangha.

The UNESCO serial property has two components: Chaukhandi Stupa and the Archaeological Remains of Sarnath.

Sarnath at a Glance

• One of Buddhism’s holiest pilgrimage sites.

• Located near Varanasi, Uttar Pradesh.

• Known in ancient Buddhist texts as Rishipattan, Ishipatana and Mrigadava (Deer Park).

Why Sarnath is Sacred

• After attaining enlightenment at Bodh Gaya, Buddha delivered his first sermon here to five disciples.

• The sermon began Dharmachakra Pravartan — the “Turning of the Wheel of Dharma”.

• It also marked the establishment of the Buddhist Sangha or monastic community.

UNESCO Property: Two Components

• Chaukhandi Stupa.

• Archaeological Remains of Sarnath — Dhamekh Stupa, Dharmarajika Stupa, Mulagandhakuti Vihara, Ashokan Pillar and associated monasteries and remains.

Monument–Significance Map

Monument

What to Remember

Dhamekh Stupa

Traditionally associated with Buddha’s first sermon.

Dharmarajika Stupa

Among the earliest stupas commissioned by Emperor Ashoka.

Chaukhandi Stupa

Commemorates Buddha’s meeting with his first five disciples.

Mulagandhakuti Vihara

Believed to mark where Buddha spent his first rainy season after enlightenment.

MEMORY HOOK

SARNATH = First Sermon + First Sangha.  Chaukhandi = meeting; Dhamekh = sermon; Dharmarajika = Ashoka; Mulagandhakuti = first rainy season.

ACTIVE RECALL — Close the page and answer

1. Where is Sarnath located?

2. Which two developments followed Buddha’s first sermon at Sarnath?

3. Name the two components of the UNESCO serial property.

4. Match Chaukhandi, Dhamekh, Dharmarajika and Mulagandhakuti with their significance.

02  Initiatives at Rashtrapati Bhavan   |   GS 2 — Governance

WHY IN NEWS?

As President Smt. Droupadi Murmu completed four years in office, several citizen-centric initiatives were launched at Rashtrapati Bhavan and the President’s Estates.

30-SECOND SNAPSHOT

The initiatives combine accessibility, public participation, child welfare, green mobility and sustainable infrastructure.

Key names: e-Audio Guide, e-Upahaar, Bachpan “Bal Parisar”, RAAHI and the Net Zero Energy Strategy.

1. e-Audio Guide — Accessibility

• Application-based guide designed to improve the visitor experience.

• Available in Hindi, English and 14 other Indian languages.

• Includes a sign-language module.

2. e-Upahaar — Public Participation

• Online platform for the public auction of Presidential gifts.

• The third edition features 300 curated gifts.

• Auction period: 5 August to 5 September 2026.

3. Bachpan “Bal Parisar” — Child-Centric Infrastructure

• A dedicated facility for children in the President’s Estate.

• Kilkari: children’s play zone.

• Samarth Anganwadi-cum-Palna: safe and nurturing facility for care and development.

4. RAAHI — Green and Inclusive Mobility

• Full form: Rashtrapati Bhavan Access And Heritage Interconnector.

• A fare-free electric bus service.

• Operated by women drivers and conductors.

• Provides transport for staff and residents, women, children, senior citizens and Divyang persons.

• Connects the President’s Estate with the nearest Metro station.

5. Net Zero Energy and Estate Development

• Foundation stone laid for a new service block under the Net Zero Energy Strategy.

• Aim: greater energy efficiency and sustainable infrastructure.

• Accommodation facilities inaugurated at Rashtrapati Niketan, Dehradun, and Rashtrapati Nilayam, Secunderabad.

• Foundation stone laid for redevelopment of staff quarters in the President’s Estate.

MEMORY HOOK

E–E–B–R–N: e-Audio, e-Upahaar, Bachpan, RAAHI, Net Zero. Think: Access → Auction → Children → Mobility → Sustainability.

ACTIVE RECALL — Close the page and answer

1. What is e-Upahaar?

2. Expand RAAHI and state its defining features.

3. Which initiative includes Kilkari and Samarth Anganwadi-cum-Palna?

4. How do the initiatives promote accessibility and sustainability?

03  Ceratocaudia antiqua   |   GS 3 — Science & Technology

WHY IN NEWS?

Scientists discovered a new long-necked dinosaur species in western India. Its most striking feature is a curved, horn-like crest on the front part of its tail vertebrae.

30-SECOND SNAPSHOT

Ceratocaudia antiqua is a newly discovered sauropod from the Kaladongar Formation of the Kachchh Basin in Kutch, Gujarat.

It lived about 170–180 million years ago in the Jurassic Period and is among the earliest known macronarian dinosaurs.

At about 7 metres long, it was much smaller than giant sauropods such as Brachiosaurus.

Discovery and Age

• Site: Kaladongar Formation, Kachchh Basin, Kutch district, Gujarat.

• Age: approximately 170–180 million years.

• Period: Jurassic.

• Importance: earliest diagnosable member of its lineage in India and among the earliest known macronarians.

Distinctive Anatomy

• About 7 metres long; Brachiosaurus could reach around 20 metres.

• Curved horn-like crest on the front part of the tail vertebrae.

• Unique notch on the neck vertebrae.

• Distinctive tibia and fibula.

• Tail joints change from flat-ended to ball-and-socket near the tip — a feature usually seen in much later dinosaurs.

Name Decoded

• “cerato” = horn.

• “caudia” = tail.

• “antiqua” = old or ancient.

What are Macronarians?

• A group of long-necked sauropod dinosaurs.

• Characterised by large box-shaped skulls, wide nostrils and massive bodies with long necks and tails.

MEMORY HOOK

Ceratocaudia = “horn-tail”; antiqua = ancient. Location–Age–Feature: Kutch • Jurassic • horn-like tail crest.

ACTIVE RECALL — Close the page and answer

1. Where was Ceratocaudia antiqua found?

2. Why is it significant in India’s dinosaur record?

3. What does its name mean?

4. List three anatomical features that distinguish it.

04  Blue Straggler Star (BSS)   |   GS 3 — Space

WHY IN NEWS?

Indian astronomers observed a Blue Straggler Star during its formation stage, providing rare direct observational evidence of how these unusual stars originate.

CORE IDEA

A Blue Straggler looks young in an old stellar neighbourhood. It becomes hotter, brighter, bluer and more massive after gaining additional mass.

Where are Blue Stragglers Found?

• Globular clusters.

• Open clusters.

• Dwarf galaxies.

Discovery

• First identified by Allan Sandage during 1952–53 in the globular cluster M3.

How Do They Form?

Mechanism

Process

Mass transfer in a binary system

One star expands and transfers outer material to its companion. The companion gains mass and becomes hotter, brighter and more massive.

Stellar collision or merger

In a dense cluster, two stars collide or merge. The resulting star becomes more massive and energetic, appearing younger than surrounding stars.

Key Observational Clues

• They follow a different evolutionary path because additional mass “rejuvenates” them.

• They appear younger despite being located in ancient clusters.

• Strong X-ray emission indicates ongoing accretion and supports the mass-transfer explanation.

MEMORY HOOK

Blue Straggler = OLD cluster + YOUNG appearance + EXTRA mass. Formation: Transfer or Merger.

ACTIVE RECALL — Close the page and answer

1. Why is a Blue Straggler called a “young-looking” star?

2. Name its two main formation mechanisms.

3. Where are these stars commonly found?

4. What does strong X-ray emission indicate?

05  Tripura Sarinda   |   GS 3 — Culture & GI Tags

WHY IN NEWS?

A Tripura artisan showcased the GI-tagged Tripura Sarinda at “Indi Haat 2026” in New Delhi.

30-SECOND SNAPSHOT

Tripura Sarinda, also called Sarinda Uakhrap, is a traditional bowed string instrument associated with Tripura’s indigenous communities.

It is carved from a single block of wood, has a hollow resonator, three pegs and is played with a horsehair bow.

Construction and Design

• Traditionally made using bamboo and wood.

• Oval hollow vibrating chamber covered with thin animal skin.

• Open upper portion and narrow waist.

• Length: approximately 65–70 cm.

• Three pegs secure the strings.

• Strings may be made of metal, Muga silk thread or animal gut.

• Played with a horsehair bow and tuned by tightening or loosening the strings.

Cultural Connections

• Important in the folk traditions of Tripura’s indigenous communities.

• Bodos call a similar instrument Serja or Serenja.

• Known as the “Foli” instrument in parts of Assam, West Bengal, Jharkhand, Tamil Nadu, Karnataka, Rajasthan and Gujarat.

• Sarangi and Nepali Sarangi are closely related.

• Traditionally played by Bauls of Bengal, Punjabis, Rajasthan’s folk artists, Bodos of Assam and the Twiprasa of Tripura.

GI Status

• The GI tag recognises its unique craftsmanship and cultural heritage.

MEMORY HOOK

Tripura Sarinda = bowed strings + hollow wooden resonator + 3 pegs + horsehair bow + GI tag.