Which one of the major source of irrigation in India?

The largest tea exporter of the world is:

The oath of office is administered to the members of state council of ministers by

Jodhpur was founded in 1459 by a Rajput ______.

Author of “ The Diary of a young girl” is

A man spends a part of his monthly income and saves the rest. The ratio of his expenditure to the saving is 61 : 6. If his monthly income is Rs .8710, the amount of his monthly saving is 

Two numbers are 90 % and 75 % lesser than a third number. By what % should the first number be increased so that it becomes equal to the second number? 

A man's annual income has increased by Rs. 5 lakhs but the tax on income that he has to pay has reduced from 12 % to 10 %. He now pays Rs. 10,000 more income tax. What is his increased income (in Rs. lakhs)?