What was the focus of the economic policies pursued by the colonial government in India? What was tire impact of these policies?

The focus of economic policies pursued by the colonial government in India was to make India an exporter of raw material for feeding the rapidly expanding modern industrial base in their home country.
The British policies layed following impact on India:
(i) Agricultural sector had a lot of surplus labour and had extremely low productivity.
(ii) Industrial sector was backward and lacked diversification.
(iii) Poverty and unemployment was at high.
(iv) Infrastructural facilities needed