Rural income is increasingly insulated from agricultural income.
Kautilya's superintendent of agriculture had the task of controlling sowing, contingent on rainfall. If the FM sought Indra's help in 2010-11 and thanked Indra in 2011-12, he was following a hoary tradition. Vishnu Purana also has a famous prayer by Indra to Lakshmi, invoking prosperity. Since parts of India haven't changed in thousands of years, Indra and Lakshmi tend to hold hands. In the past, monsoon failure triggered famines. It may not be that terrible today. But a bad monsoon adversely affects GDP growth. However, we need to be clear about what we mean by "bad". Average rainfall is irrelevant. What matters is its temporal and geographical spread. More than six decades after Independence, it should be intolerable that we are stuck with low-productivity and subsistence-level agriculture in large geographical chunks. Why did we need MGNREGS?Partly because we haven't got irrigation going, though irrigation is only one component in modernising agriculture.