11:42 HRS IST
knowledge
Surya S Pillai
New Delhi, Jul 13 (PTI) Delhi's baolis or step wells known for their ornate design and striking beauty lay in ruins today, but what disturbs the environmentalists more is the loss of traditional knowledge-based system of conservation which could have proved a lifeline for the city suffering from water crisis.
via Science - Google News http://ift.tt/1r8Vwq9

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