IIRC there was a post on something similar being done in the times prior to the British Raj - small valleys would be damed off to capture the monsoon rains & in

IIRC there was a post on something similar being done in the times prior to the British Raj - small valleys would be damed off to capture the monsoon rains & insure that rivers & springs flowed year round. https://www.jstor.org/stable/40278311?seq=1#page_scan_tab_contents https://www.jstor.org/stable/40278311?seq=1#page_scan_tab_co...