In the Government of India Act, 1919 how many subjects were included in Central List?

Problem associated with Human Settlement in developing countries is: 

The 'Instrument of Instructions' contained in the Government of India Act, 1935 have been incorporated in the Constitution of India in the year 1950 as -

Directive Principles of State Policy have been borrowed from the Constitution of which country?

When was the Constitution of India adopted by the Constituent Assembly?

Amongst the following the characteristics of which system have been incorporated in the Constitution of India?

Who among the following is the creation of 'Satyarth Prakash'?

In which division is the river Sukta of Rigveda?