41.
The oldest river valley project in India is

42.
Which place is said to be the Manchester of South India?

43.
In India, the Black Revolution is related to the manufacturing of which product?

44.
The first month of the 'Saka era' is ________

45.
The Integral coach factory is in

46.
National Waterway-I is on which water system?

47.
Which one of the following is the correct sequence of the given tiger reserves of India from north to south?

48.
India provides ideal conditions for air travel because

49.
Where are the coaches of trains manufactured in India?

50.
Asia's first underground Hydel Project is located in which of the following States in India?