History · Medieval Indian History
In medieval India, the process of indigo extraction underwent great improvement as a result of the:
Verified Solution4 OptionsUpdated: October 2026👁️1 View
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- 1employment of slave labour in quick desilting of indigo crucibles.
- 2use of gypsum and lime mortars in making the inner surfaces of indigo vats water-proof.✓
- 3introduction of mechanical crushing tools for indigo stems.
- 4use of chemical fertilizer enhancing the quality of indigo crop.
Correct answer
use of gypsum and lime mortars in making the inner surfaces of indigo vats water-proof.
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