Civil Services Examination · प्रश्न 33
Indigo cultivation in India declined by the beginning of the 20th century because of
उत्तर दाखवा आणि स्पष्टीकरण
उत्तर: (B) its unprofitability in the world market because of new inventions
स्पष्टीकरण
The invention of synthetic indigo (Germany, late 1890s) made natural indigo unprofitable.