In September 2025, the Karnataka government issued a notification modifying the buffer zones around Bengaluru’s stormwater drains and lakes. The new guidelines prescribe just 15 metres for primary drains, 10 metres for secondary, and only 5 metres for tertiary drains—much lower than the earlier mandates of 30/15/10 metres. The notification follows the proposal to amend the Karnataka Tank Conservation and Development Authority (KTCDA) Act, reducing buffer zones around lakes. Lake buffers, which were at 30 metres, have been proposed to be reduced to a range between 0 and 30 metres, based on the lake's size. This move has been criticised…
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