In Tamil Nadu's Tiruvarur district, vast stretches of the once fertile Cauvery delta have turned into barren fields. 32-year-old Arogya Mary has given up on agriculture as a livelihood. Her 36-year-old husband died on the same field less than six months ago after a heart attack. Ms Mary says her husband was heartbroken that there was no water to sow any crop. "I used to help my husband in the field but now I don't want to get back to agriculture. There is no water. My children are studying and not interested in farming," she says.