90000 litres 12 calls rs 3000 rs 1500 rs 4000 rs 3500 spending rs 2500 kondapur madhapur year source year supply crossed 8 lakh shanker estimated 600metredeep borewell 1200 metres earlier depending heavily gated community weeks vamshi apartment societies regular customers residential areas central parts running 10000 tankers multiple shifts tankers daily buy water draw water water daily private tankers private water tankers peak summer months sewerage board hmwssb manikanta water suppliers intense water crisis cent increase compared 25000litre tanker costs gachibowli toi reported