In general, colonized countries' economies are always run in such a way as to benefit the mother country, more or less regardless of what effect that has on the colony. In India, this trend held true. In the case of India, Indian agriculture was converted over to the production of staple crops for export. This conversion was hastened by the US Civil War, which increased demand for Indian cotton.
As Indian agriculture turned to growing cotton, food production declined. This was, in part, to blame for the famines that hit India during British rule.
British colonial polices degraded Indian agriculture reason were many firstly deindustrialization acted as a catalyst in defragmentation of land, infertility of soil ,disguise unemployment as Britishers were not encouraging Indian handicraft industries on the contrary they were discouraging Indian handicraft industries and handloom so there was shift of weavers working in that industry towards the basic employment that was agriculture so all the evil started from there.other reasons were various land revenue were introduced like zamimdari system which was making the life of peasant much more difficult because they have have to pay fixed revenues to the zamindar which was appointed by britishers for a fixed piece of land they were made owner of the land and if they were not able to give the fixed revenue determined by Britisher thier land will be confiscated so they use very harsh method of collecting tax which make the life of peasant much more harder and affected agriculture