The first large scale electrical air conditioning was invented and used in 1902 by
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Inderjeet Singh is related to ______.
Dara Shikoh was killed in conflict with his brother _______________.
'Do or Die' is associated with which of the movements in India's freedom struggle
Constituent Assembly of India was founded in the year ________.
If the diameter of a sphere is 14 cm, then what is the surface area (in sq.cm) of the sphere?
Who invented the thermos flask?
Who discovered the colour photography?