1. During the reign of Alauddin Khilji, Mongols attacked Delhi the most number of times.

2. First in the year 1299 and then in 1302-03. Alauddin Khilji built a new garrison town called Siri for his troops.

3. The administrative measures of Muhammad Tughlaq failed.

Answer: B) Prime Minister Explanation: The rank of the different ministers is determined by the Prime Minister, according to whose advice the President appoints the Ministers [ Art 75(1) ] and also allocates business among them [ Art 77 ].

Sarojini Naidu was the first woman to become the governor of an Indian state. She governed Uttar Pradesh from 15 August 1947 to 2 March 1949. Her daughter, Padmaja Naidu, is the longest-serving female governor with almost 11 years tenure in West Bengal.

Answer: D) Agriculture Explanation: Agriculture would be a good example of a purely competitive industry.

India was ranked 43rd at the Rio Para-Olympics. The 31st edition of the Summer Olympic Games opened in the Brazilian city of Rio de Janeiro. India competed at the 2016 Summer Paralympics in Rio de Janeiro, Brazil from 7 to 18 September 2016. It was declared open by acting Brazilian President Michel Temer at the Maracana Stadium. This has been India's best ever performance in the history of the Summer Paralympic Games with a total of 4 medals (2 Gold, 1 Silver and 1 Bronze). Devendra Jhajharia broke the world record of winning gold medal in Paralympics. Mariyappan Thangavelu is the first gold medalist for India at the 2016 Paralympics