Removes 15 Borewells Around Sunnam Cheruvu, Uncovers Underground Pipeline Network. HYDRAA launched a large-scale operation against illegal borewells around Sunnam Cheruvu in Madhapur, targeting a decades old water. Hyderabad: Senior officials of Cyberabad Municipal Corporation (CMC) and Hydraa reviewed the beautification works related to Sunnam Cheruvu and Timmidi Kunta.