Notes
( THE GLOSSARY · 1 OCT 2026 · UPDATED 1 OCT 2026 · 1 MIN )

Water source (Cauvery, borewell, tanker).

A home's water in Bengaluru comes from one or more of three sources: the Cauvery pipeline run by BWSSB, a private or shared borewell, or a tanker brought in when the first two fall short.

( SCROLL ↓ )

Close to half the city still depends on borewell water rather than the Cauvery network, and that share runs higher on the outskirts, where the piped network arrived later or has not arrived yet. A building that relies on tankers folds the cost into its maintenance bill, and that cost rises every summer, when borewells run lowest and tankers are busiest. For a home that depends on tankers, we ask how many months a year, and what it costs, before anyone signs.

01

The number

Close to half of Bengaluru depends on borewell water rather than the Cauvery network, Deccan Herald. Tanker cost is commonly quoted at ₹1,500 to ₹4,000 a month per home.

02

Sources

Where it comes from. Level 1 is a government or court page, level 2 established press, level 3 a portal's explainer, which gives only what is commonly quoted.

  • Deccan Herald, almost half of Bengaluru depends on borewell water, https://www.deccanherald.com/amp/story/india%2Fkarnataka%2Fbengaluru%2Falmost-half-bengaluru-depends-borewell-2061594, level 2
  • Mittiyo, water supply in Bengaluru, a renter guide, https://blogs.mittiyo.com/mittiyo/water-supply-bengaluru-renter-guide/, level 3
( THE NUMBER )

Close to half of Bengaluru depends on borewell water rather than the Cauvery network, Deccan Herald.

Close to half of Bengaluru depends on borewell water rather than the Cauvery network, Deccan Herald. Tanker cost is commonly quoted at ₹1,500 to ₹4,000 a month per home.

A term is defined from the statute or from the practice, with the source named beside it. Where Bengaluru's practice differs from the law, the page says so rather than choosing one.

Send this page to whoever you are moving with; a home is usually chosen by two people at eleven at night. The next step is one message to the desk with the budget, the size and the office.

The glossary knows the word. The desk knows the home.
← NEWER Villa versus independent house ALL NOTES The journal
( MORE FROM THE JOURNAL )

What else we keep learning.

A SMALL ASK

May we learn from this visit? An anonymised replay helps us understand what works, what doesn’t, and where we can make the experience better.

What each tool does →