241. Through which methods is the national income of India estimated mainly?
Production and income methods
242. Who was the first Central Cabinet Minister from Kerala?
Dr.John Mathai (1947- 50)
243. What is the first month of the "Saka era"?
Chaitra
244. Which is used as a mordant in dying and tanning industry?
Magnesium sulphate
245. During which reign was Kalidasa lived?
Chandragupta II
246. Who is the author of Northanger Abbey ?
Jane Austen
247. First European to visit China?
Marco Polo
248. How many gold medals did India win at the XIth Asian Games?
One
249. Who is the author of “Mountbatten and Partition of India”?
Larry Collins and Dominique Lapierre
250. By whom was the absolute value of charge on electron determined?
R.A. Millikan