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chemistry

Jali

Jali is a chemistry topic covered in the lgStudy science library. This page brings together a partial reference excerpt, illustrations, worked examples, real-world applications and a short study plan, so you can understand Jali rather than just read about it. In short: A jali or jaali (jālī, meaning "net") is the term for a perforated stone or latticed screen, usually with an ornamental pattern constructed through the use of calligraphy, geometry or natural patterns. This form of architectural decoration is common in Indo-Islamic architecture and more generally in Indian architecture.

Jali — main illustration
Jali — illustration

Key takeaways

  • Jali belongs to chemistry; place it in that map before memorising details.
  • Learn the definition first, then one example that makes the definition concrete.
  • Connect Jali to a quantity you can measure, compute or draw — that is where exam questions come from.
  • Reproduce the core statement of Jali from memory before moving on to harder problems.

Reference excerpt

A jali or jaali (jālī, meaning "net") is the term for a perforated stone or latticed screen, usually with an ornamental pattern constructed through the use of calligraphy, geometry or natural patterns. This form of architectural decoration is common in Indo-Islamic architecture and more generally in Indian architecture. It is closely related to mashrabiya in Islamic architecture. According to Yatin Pandya, the jali allows light and air in while minimizing the sun and the rain, as well as providing cooling through passive ventilation. The holes are nearly the same width or smaller than the thickness of the stone, thus providing structural strength. It has been observed that humid areas like Kerala and Konkan have larger holes with overall lower opacity than compared with the dry climate regions of Gujarat and Rajasthan.

With the widespread use of glass in the late 19th century, and compactness of the residential areas in modern India, jalis became less frequent for privacy and security matters. In the 21st century, it has gained popularity again as a low-energy building solution for the environmental footprint of energy use by buildings.

History The earliest sanctuaries in India, dedicated to Buddhism, Jainism and Hinduism, were often dimly lit and confined, resembling natural caves. Worshippers gathered in front of the sanctuaries' doorways for prayers and offerings. To control the harsh daylight entering the temples, screens known as jalis were used to filter and soften the light, encouraging devotion and directing attention to the sacred images. The tradition of using jalis persisted in later Indian architecture, including Hindu and Jain temples. Over time, the designs of jalis evolved, incorporating geometric and naturalistic patterns. With the advent of Islamic architecture in Gujarat, the use of jalis expanded and became a prominent feature in mosques and tombs, following the same symbolic importance of light in Islam. The adoption of jalis in Islamic buildings shows a fusion of architectural styles and motifs from Hindu, Jain, and Islamic traditions, largely influenced by the guilds of masons working for patrons across different cultural backgrounds. Early jali work with multiple geometric shapes was built by carving into stone, in geometric patterns (first appearing in the Alai Darwaza of 1305 at Delhi beside the Qutub Minar); later on, the Mughals used very finely carved plant-based designs (as at the Taj Mahal). They also often added pietra dura inlay to the surrounds using marble and semi-precious stones. In the Gwalior Fort near the Urwahi gate, there is a 17-line inscription dated Samvat 1553 mentioning names of some craftsmen and their creations. One of them is Khedu, who was an expert in Gwaliyai jhilmili (jali screens crafted in the Gwalior style). The Mughal period tomb of Muhammad Ghaus, built in 1565 AD at Gwalior, is remarkable for its stone jalis. Many of Gwalior's 19th-century houses used stone jalis. Jalis are used extensively in Gwalior's Usha Kiran Palace Hotel, formerly Scindia's guest house.

Museum collections Some of the jalis are in major museums in the U.S. and Europe. These include the Indianapolis Museum of Art, the Metropolitan Museum of Art and the Victoria and Albert Museum.

Illustrations

See also Girih Jharokha Openwork Venturi effect

References

Sources Lerner, Martin (1984). "JALI SCREEN". The Flame and the Lotus: Indian and Southeast Asian Art from the Kronos. New York: Metropolitan Museum of Art. pp. 156–157. ISBN 0-87099-401-8. OCLC 10799173.

External links

"ArchNet Dictionary of Islamic Architecture: Jali". archnet.org. 4 June 2003. Archived from the original on 22 December 2004. Michelsen, Leslee (7 November 2023). "Jali". Khamseen. Retrieved 10 August 2025.

Illustrations

Jali: Jali at Ajitnath Jain Temple, 11th-century Gujarat
Jali at Ajitnath Jain Temple, 11th-century Gujarat
Jali: A jali is typically open, but this example of a 17th-century jali from the last Mughal period was owned by a wealthy merchant and probably placed with the external portal. Basically, the impression is friendly and inviting as the inside of the palace, but secure to outside world. The iris pattern at the top is a departure from the earlier geometry and indicates a Persian influence.
A jali is typically open, but this example of a 17th-century jali from the last Mughal period was owned by a wealthy merchant and probably placed with the external portal. Basically, the impression is friendly and inviting as the inside of the palace, but secure to outside world. The iris pattern at the top is a departure from the earlier geometry and indicates a Persian influence.
Jali: Jali panels in Rajput style, Hawa Mahal, Jaipur
Jali panels in Rajput style, Hawa Mahal, Jaipur
Jali: Jali screens in the tomb of Akbar the Great near Agra, India
Jali screens in the tomb of Akbar the Great near Agra, India
Jali: Jalis were architectural elements and designed to interlock with repeated patterns. This detail shows the relative thickness and sandstone carving (late 17th-century Mughal origin).
Jalis were architectural elements and designed to interlock with repeated patterns. This detail shows the relative thickness and sandstone carving (late 17th-century Mughal origin).

Worked examples

Example 1 — a first encounter with Jali

Start with the simplest possible case. Write down what Jali claims or describes in one sentence, then invent the smallest concrete situation in which that sentence is true. In chemistry, the smallest case is usually a single object, a single equation or a single measurement. Check that every symbol or term in your sentence has a meaning in that case.

Example 2 — changing one variable

Take the situation from Example 1 and change exactly one quantity: double it, halve it, or set it to zero. Predict what should happen to Jali before you calculate. Comparing your prediction with the result is the fastest way to find out whether you understand the idea or only the words.

Example 3 — an exam-style question

Typical questions about Jali ask you to (a) state it precisely, (b) apply it to given data, and (c) explain a limitation. Practise writing all three answers in under five minutes; the third part is what separates a full-mark answer from an average one.

Applications of Jali

In research
Jali appears in chemistry research whenever the underlying quantities have to be modelled precisely. Papers usually cite it as a starting assumption and then explore where it breaks down.
In technology and industry
Engineering practice reuses Jali in design rules, simulations and safety margins. Knowing the idea lets you read a specification sheet and understand why the numbers look the way they do.
In the classroom
Jali is common in secondary-school and first-year university syllabi. It links to neighbouring topics Architectural elements, Indian architectural styles, Islamic architectural elements, so understanding it makes those chapters shorter.
In everyday life
Look for Jali outside the textbook — in sport, cooking, traffic, electronics or the sky above you. An example you found yourself is remembered far longer than one you were given.

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How to study Jali in 20 minutes

  1. Read the reference excerpt below once, without taking notes.
  2. Close the page and write down what Jali means in your own words.
  3. Compare your version with the excerpt and mark what you missed.
  4. Work through the three examples above with pen and paper.
  5. Explain Jali out loud to somebody else — or to Teacher Smith in the lgStudy chat.

Frequently asked questions

What is Jali in simple terms?

A jali or jaali (jālī, meaning "net") is the term for a perforated stone or latticed screen, usually with an ornamental pattern constructed through the use of calligraphy, geometry or natural patterns. This form of architectural decoration is common in Indo-Islamic architecture and more generally i…

Why does Jali matter?

Because it connects several chemistry ideas at once: it gives you a definition you can apply, a quantity you can calculate, and a way to check whether a result is plausible.

How should I study Jali?

Read the excerpt, restate it from memory, then work through the examples and applications listed on this page. The five-step study plan above takes about twenty minutes.

What does this page cover?

It gives you a compact reference excerpt plus original lgStudy explanations, examples, applications and study material on Jali.

Tags

  • Architectural elements
  • Indian architectural styles
  • Islamic architectural elements
  • Islamic architecture
  • Mughal architecture elements
  • Passive cooling
  • Passive ventilation

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