more-inThe civic administration seems to be leaving no stone unturned to suppress frothing at Bellandur and Varthur lakes. “Frothing has reduced by over 90% at the Varthur lake weir and by nearly 80% at the Yemalur weir of Bellandur lake,” he claimed. “We need to see how the coir blocks can sustain heavy rains. Coir blocks placed at the weir of Varthur lake to suppress frothing. The coir blocks have been placed on a pilot basis at two weirs — Yemalur weir of Bellandur lake and Varthur Kodi of Varthur lake..