Latest Update: UPSC CSE 2025 Notification Out!
Ancient Indian History Notes

Chronology of Ancient Indian History: Timeline from Stone Age to Harsha

Komal Gupta

UPSC Exam Expert & Content Editor

Updated 26 Oct 2026

PDF Notes: Chronology of Ancient Indian History: Timeline from Stone Age to Harsha

Premium PDF · one-time payment of ₹10 · instant access

Quick answer: Ancient Indian history runs from the Stone Age (over 2 million years ago) through the Indus Valley Civilisation (c. 2600-1900 BCE), the Vedic Age (c. 1500-600 BCE), the Mahajanapadas and rise of Magadha (6th century BCE), the Mauryan Empire (321-185 BCE), the post-Mauryan kingdoms (Shungas, Satavahanas, Kushanas), the Sangam Age, the Gupta Empire (c. 320-550 CE) and Harshavardhana (606-647 CE) to the regional kingdoms of the Pallavas and Chalukyas. Most dates before about 300 BCE are approximate, so write "c." (circa) in your answers.

Dear students, ancient history looks like a big ocean of names and dates. The best way to cross it is to fix a few "anchor dates" and build the story around them. This chapter is exactly that: one timeline note which you can revise in 30 minutes before any test. Remember that the UPSC rarely asks pure year-based questions but frequently asks sequence, contemporaries and cause-effect. So the order of events is more important than the exact year.

Prehistoric Periods

PeriodApproximate timeKey featuresImportant sites
Palaeolithic (Old Stone Age)c. 2 million years ago to 10,000 BCEHunter-gatherers; crude stone tools (hand-axes, cleavers, choppers); use of fire; cave lifeBhimbetka (MP), Hunsgi (Karnataka), Attirampakkam (Tamil Nadu), Soan valley (Pakistan), Narmada valley
Mesolithic (Middle Stone Age)c. 10,000 to 6,000 BCEMicroliths (tiny stone tools); beginning of animal domestication; rock paintings; hunting and fishingBagor (Rajasthan), Adamgarh (MP), Langhnaj (Gujarat), Sarai Nahar Rai (UP)
Neolithic (New Stone Age)c. 7000 to 1000 BCE (varies by region)Agriculture, pottery, polished stone tools, settled lifeMehrgarh (Baluchistan, c. 7000 BCE), Burzahom and Gufkral (Kashmir), Chirand (Bihar), Koldihwa (UP), Piklihal and Maski (Karnataka)
Chalcolithic (Copper-Stone Age)c. 3000 to 1000 BCEUse of copper along with stone; rural settlementsAhar (Rajasthan), Gilund, Kayatha, Malwa, Jorwe, Navdatoli, Inamgaon (Maharashtra)

Bronze Age and Early Iron Age

PhaseDate (c.)Landmark events
Early Harappan3300 to 2600 BCEVillage farming communities of the Indus and Ghaggar-Hakra region
Mature Harappan (Indus Valley Civilisation)2600 to 1900 BCEPlanned cities with grid streets and drains: Harappa, Mohenjo-daro, Dholavira, Lothal, Kalibangan, Rakhigarhi; trade with Mesopotamia; undeciphered script
Late Harappan1900 to 1300 BCEDecline of cities; shifts of settlements to the east and south
Early Vedic (Rig Vedic) periodc. 1500 to 1000 BCEPastoral society; the Rig Veda; tribal assemblies (sabha, samiti); the Battle of Ten Kings (Dasarajna) on the Parushni (Ravi)
Later Vedic periodc. 1000 to 600 BCEIron use (c. 1000 BCE); Sama, Yajur, Atharva Vedas; Brahmanas, Upanishads; expansion into the Ganga plain; the varna system hardens; territorial kingdoms

Age of Mahajanapadas, Religious Movements and Rise of Magadha

EventDate (c.)Notes
Sixteen Mahajanapadas6th century BCEKashi, Kosala, Anga, Magadha, Vajji, Malla, Chedi, Vatsa, Kuru, Panchala, Machchha, Surasena, Assaka, Avanti, Gandhara, Kamboja
Mahavirac. 599 to 527 BCE (traditional; some say 540-468)The 24th Tirthankara of Jainism; born near Vaishali
Gautama Buddhac. 563 to 483 BCE (traditional; modern scholars prefer c. 480-400)Born at Lumbini; enlightenment at Bodh Gaya; first sermon at Sarnath; died at Kushinagar
Haryanka dynasty (Bimbisara, Ajatashatru)c. 544 to 413 BCERajagriha as the capital; Pataliputra founded by Udayin (c. 5th century BCE); first Buddhist Council at Rajagriha after the Buddha's death
Shishunaga dynastyc. 413 to 345 BCEKalashoka held the second Buddhist Council at Vaishali
Nanda dynastyc. 345 to 321 BCEMahapadma Nanda, "the sole sovereign"; wealth and a huge army
Persian invasion (Achaemenid)c. 518 BCEDarius I annexed the north-west (Gandhara, the Indus region)
Alexander's invasion326 BCEBattle of the Hydaspes (Jhelum) against Porus; Alexander's army refused to proceed beyond the Beas

Mauryan and Post-Mauryan Age

Ruler / DynastyDate (c.)Key points
Chandragupta Maurya321 to 297 BCEOverthrew the Nandas with the help of Chanakya (Kautilya); defeated Seleucus Nicator (c. 305 BCE); Megasthenes' Indica
Bindusara297 to 273 BCEExpanded the empire to the south; called "Amitrochates" by the Greeks
Ashoka268 to 232 BCEKalinga War (261 BCE); adopted Buddhism; Dhamma; rock and pillar edicts; Third Buddhist Council at Pataliputra (c. 250 BCE)
Last Mauryan king Brihadrathakilled in c. 185 BCEKilled by his commander Pushyamitra Shunga
Shungasc. 185 to 73 BCEPushyamitra Shunga; Bharhut and Sanchi stupa expansion; Patanjali's Mahabhashya
Kanvasc. 73 to 28 BCEVasudeva Kanva
Satavahanasc. 1st century BCE to 3rd century CEDeccan; Gautamiputra Satakarni, Vasishthiputra Pulumavi; Prakrit; Amaravati art
Indo-Greeks, Shakas, Parthiansc. 2nd century BCE to 1st century CEMenander (Milinda) and the Milindapanha; Rudradaman I (Junagadh inscription, Sanskrit)
Kushanasc. 1st to 3rd century CEKanishka (c. 78 CE or later, start of the Saka era traditionally linked); Fourth Buddhist Council in Kashmir; Gandhara and Mathura art; gold coins
Sangam Agec. 300 BCE to 300 CECholas, Cheras, Pandyas; Sangam literature; maritime trade with Rome

Gupta Age and After

Ruler / EventDate (c.)Key points
Chandragupta Ic. 319/320 to 335 CEFounder of the empire; Gupta era begins in 319-320 CE; married Kumaradevi (Lichchhavi)
Samudraguptac. 335 to 375 CE"Napoleon of India"; Allahabad Pillar inscription by Harishena; Ashvamedha coins
Chandragupta II (Vikramaditya)c. 375 to 415 CEDefeated the Western Kshatrapas; Navaratnas including Kalidasa; Fa-Hien visited (399-414)
Kumaragupta Ic. 415 to 455 CEFounded Nalanda; Hun attacks began later
Skandaguptac. 455 to 467 CERepelled the Huns; Sudarshana lake repaired (Junagadh)
Hunas under Toramana and Mihirakulac. 500 to 530 CEWeakening of the Gupta empire
Harshavardhana606 to 647 CECapital Kanauj; defeated by Pulakeshin II on the Narmada (c. 618-619); Xuanzang visited (630-644); Banabhatta's Harshacharita; Prayag assembly
Pallavas of Kanchic. 275 to 897 CEMahendravarman I, Narasimhavarman I (Mamalla); Mahabalipuram
Chalukyas of Badamic. 543 to 753 CEPulakeshin II; Aihole inscription (Ravikirti); Badami, Aihole, Pattadakal

Foreign Visitors: Quick Sequence

  • Megasthenes (Greek ambassador of Seleucus at the court of Chandragupta Maurya), author of Indica.
  • Fa-Hien (Faxian, Chinese Buddhist monk) in the time of Chandragupta II; wrote about the peace and prosperity of the Gupta age.
  • Xuanzang (Hiuen Tsang) in the time of Harshavardhana; studied at Nalanda; his book "Si-Yu-Ki".
  • I-Tsing (Yijing) in the late 7th century CE; described Nalanda and Vikramshila.
  • Others: Pliny (Natural History), the author of the Periplus of the Erythraean Sea (trade), Ptolemy (Geography), and Al-Biruni (11th century, medieval).

Memory Techniques for Ancient History

  1. The Triple Anchor: 321 BCE (Chandragupta Maurya), 261 BCE (Kalinga War), 320 CE (Gupta era starts). If you remember these three, you can place everything else before and after.
  2. "B-M-G-H": Buddha (6th century BCE), Mauryas (4th-2nd BCE), Guptas (4th-6th CE), Harsha (7th CE). The four pillars of the ancient timeline.
  3. The Triple Cycle: Rise of the cities (IVC) - fall - second urbanisation (Mahajanapadas) - empire (Mauryas) - regional (post-Mauryan) - empire (Guptas) - regional (post-Gupta). Ancient India alternated between empire and regional states.
  4. Contemporaries: Buddha and Mahavira with Bimbisara and Ajatashatru; Chandragupta Maurya with Seleucus and Chanakya; Kanishka with Ashvaghosha; Samudragupta with the Pallava Vishnugopa; Chandragupta II with Kalidasa; Harsha with Xuanzang, Pulakeshin II and Banabhatta.

Eras and Calendars

EraStarting yearAssociated with
Vikram Samvat57 BCETraditionally linked with Vikramaditya of Ujjain; used widely in north India
Saka Era78 CETraditionally associated with Kanishka (not certain); adopted as India's national calendar (starting 22 March 1957)
Gupta Era319-320 CEChandragupta I
Kalachuri (Chedi) Era248-249 CEUsed in central India
Harsha Era606 CEHarshavardhana

How to Use This Timeline in the Exam

Students, in the Prelims, the typical ancient history questions are of three types. First, arrange in chronological order: for example, "Kalinga War - Third Buddhist Council - Allahabad Pillar inscription - Aihole inscription". Use your anchor dates to place them. Second, pairs of contemporaries: who lived at the same time as whom. Third, match the ruler with his achievement. For the Mains, the timeline helps in answers about continuity and change: urbanisation and its decline, the rise of the state, the role of trade, the development of religions and art. Write the dates with "c." and give a range, when you are not sure, because the examiner values the correct sequence more than a wrongly remembered exact year. Also, note the sources: archaeology and inscriptions for the early periods, literature (Vedas, Buddhist and Jain texts, Arthashastra, Sangam poems) and foreign accounts for the later periods.

Common Mistakes Students Make

  • Mixing the order of dynasties: Haryanka - Shishunaga - Nanda - Maurya - Shunga - Kanva.
  • Placing the Kalinga War in the reign of Chandragupta Maurya. It was Ashoka's war in about 261 BCE.
  • Believing that Chandragupta I and Chandragupta Maurya are the same.
  • Giving the Buddha's date with excessive confidence. Use "c." and mention that scholars debate the date.

Teacher's Tip

Students, take a long strip of paper, and draw a line from 3000 BCE to 650 CE, with a mark for every 100 years. Write only the major names at the right place: IVC, Vedic, Buddha, Alexander, Mauryas, Ashoka, Shungas, Kushanas, Guptas, Harsha. Then colour the empires in one colour and the regional kingdoms in another. Keep it on your study table. Each day, add one detail to this "master timeline". By the end of the month, the whole ancient history will be on one sheet, ready for the quick revision.

Important Points for the Exam

  • IVC: c. 2600-1900 BCE; Vedic: c. 1500-600 BCE; Mahajanapadas: 6th century BCE; Mauryas: 321-185 BCE; Guptas: c. 320-550 CE; Harsha: 606-647 CE.
  • Kalinga War: 261 BCE; Alexander's invasion: 326 BCE; Fa-Hien: Gupta age; Xuanzang: Harsha's age.
  • The Gupta era began in 319-320 CE; the Saka era in 78 CE; the Vikram Samvat in 57 BCE.

Students, read this timeline together with our notes on Indus Valley Civilization, Vedic Period, Mauryan Empire, Gupta Empire and our UPSC blog.

Frequently Asked Questions (FAQ)

When did the Indus Valley Civilisation flourish?

About 2600 to 1900 BCE in its mature phase.

When was the Kalinga War fought?

In about 261 BCE.

When did Chandragupta Maurya become king?

In about 321 BCE.

When did Alexander invade India?

In 326 BCE.

When did the Gupta era begin?

In 319-320 CE.

Who founded the Gupta Empire?

Sri Gupta as the first ruler and Chandragupta I as the first great emperor.

Who was called the Napoleon of India?

Samudragupta.

Which Chinese pilgrim visited India in Chandragupta II's time?

Fa-Hien.

Which Chinese pilgrim visited Harsha's India?

Xuanzang.

Who defeated Harshavardhana?

Pulakeshin II of the Chalukyas on the Narmada.

When did Harshavardhana rule?

From 606 to 647 CE.

Which dynasty came after the Mauryas?

The Shungas.

Which dynasty founded Pataliputra as its capital earliest?

The Haryanka line, with Udayin moving the capital there.

What is the Saka era?

A calendar starting in 78 CE, adopted as India's national calendar.

What is Vikram Samvat?

A calendar starting in 57 BCE.

Who wrote the Indica?

Megasthenes.

About the Author

Komal Gupta

UPSC Exam Expert & Content Editor

Komal is a senior UPSC exam strategist with 8+ years of experience helping aspirants crack CSE, CDS and NDA exams. She writes in-depth notification breakdowns, exam pattern guides and preparation strategies.