India looks for new Bengalurus as its Silicon Valley goes downhill

"The extent of water surface in Bengaluru during 1973 was 2,324 hectares. Over the last 50 years, due to reckless concretization, the water surface has shrunk considerably. Of the remaining water bodies, 98% of lakes are encroached upon and 90% of them are fed with untreated sewage or industrial effluents. Naturally, this has impacted the recharge of the groundwater table as well," IISc's Prof TV Ramachandra had told TOI.