NCERT Solutions Exploring Society: India and Beyond Chapter 3 Traditional knowledge and predicting the monsoon — LET'S EXPLORE

Book page 56 Updated on2026-09-05

Q1.
Since the ability to predict the monsoon rainfall has been an important aspect of life in India, our ancestors observed Nature around them carefully. They developed local traditional knowledge through their experience. This traditional knowledge is an important heritage we must preserve. For example, fishermen on the Konkan coast predict the onset of the monsoon when fishes that normally stay under water are seen at the surface; in parts of southern India monsoon is said to arrive within 50 days after the Golden Shower tree (Cassia fistula) blossoms. Some communities also believe that when crows build their nests high on tree-tops, it indicates less rainfall, whereas if the nests are lower, rainfall is likely to be heavy. Make a list of such local knowledge about rain, fog, snow or hail in your area.
Answer

How to make the list. Talk to the people who must read the sky for a living — farmers, fishermen, shepherds, gardeners, potters and masons. For each sign write down four things: the sign, what it is said to foretell, how many days ahead, and who told you. Then keep a diary for one season and mark each sign ‘came true / did not come true’.

Sample answer — a list a student might collect:

Sign observedWhat it is said to meanPossible reason behind it
Ants carrying eggs in a long line to higher groundHeavy rain within a day or twoInsects sense the fall in air pressure and rising humidity
Peacocks calling and dancingThe monsoon is closeTheir breeding season is tuned to the first rains
Swallows and dragonflies flying very lowRain the same eveningDamp, heavy air keeps the small insects they hunt near the ground
A ring (halo) around the moonRain within two or three daysThin high cirrus cloud, which often runs ahead of a rain system
Cattle refusing to lie down, or huddling togetherA storm is comingAnimals react to the drop in pressure and change in wind
Thick, early morning fog in winter over the fieldsA clear, cold, rainless dayFog forms on calm, clear nights when heat escapes the ground
The amaltās (Golden Shower) in full bloomMonsoon within about 50 daysThe tree flowers with the pre-monsoon rise in temperature
Why this knowledge deserves respect: none of these people had satellites. What they had was generations of careful observation of the same place — and animals and plants really do respond to pressure, humidity and temperature before we notice the change. Modern forecasting is more accurate over large areas, but traditional signs are local, free and immediate. The chapter calls this ‘an important heritage we must preserve’, and the surest way to lose it is not to write it down.
Check it yourself: when you record a sign, also record the date it appeared and the date the rain actually came. A sign that works four times out of five is genuine local knowledge; one that works once in five is a saying.
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