The Yenepoya Medical and Dental College in Deralakatte near Mangalore in the Canara belt has shown how rainwater harvesting makes economic sense. It invested Rs 25 lakh in digging a low-lying three-acre pond in the 15-acre campus to catch rainwater. For, despite heavy rainfall every monsoon, the college had to use tankers to bring in water. This meant an expense of Rs 6 lakh a month. Water harvesting has already helped the college save around Rs 10 lakh last year. The college expects to recover its investment by next year. Other institutions in the area have been inspired by the effort and are launching their own projects to save water.