What was the overall investment in infrastructure for India's agriculture under colonial rule?

Negligible investment in terracing, flood-control, and drainage

Despite some progress made in irrigation during colonial era, India’s agriculture was starved of investment in terracing, flood-control, drainage and desalinisation of soil. While a small section of farmers changed their cropping pattern from food crops to commercial crops, a large section of tenants, small farmers and sharecroppers neither had resources and technology nor had incentive to invest in agriculure.