Who was the National Leader who wrote History of India on the walls of the Andaman Cellular Jail?

The pioneer of Communism in India was: 

Which among the following Viceroys was associated with the ‘Ilbert Bill Controversy’? 

Which dynasty was established in India after the invasion of Timur?

Which Sultan built the Alai Darwaza?

Who introduced 'Gajj-e-Sikandari', the scale of measuring land?

Was the capital of Bahmani kings?

Krishna Deva Raya was contemporary with