In medieval India, the process of indigo extraction underwent great improvement as a result of the:
Use of fertilizer enhancing the quality of indigo crop
Introduction of mechanical crushing tools for indigo stems
Use of gypsum and lime mortars in making the inner surfaces of indigo vats water-proof
Employment of slave labour in quick desilting of indigo crucibles
For election to the Lok Sabha, a nomination paper can be filed by
Miscellaneous · Easy
In a month if the seventh day is three days earlier than Saturday,then the nineteenth day of the month will be a
Miscellaneous · Easy
Which among the following events happened earliest ?
Miscellaneous · Easy
An 80-litre solution of alcohol and water has 75% alcohol. How much water (in litres) must be added to bring down the concentration of alcohol to 60%?
Miscellaneous · Easy