BENGALURU: All set to begin burrowing for one of its longest underground sections, the Bangalore Metro Rail Corporation Limited (BMRCL) has found an answer to its primary concern — where to dump excavated soil? It has identified six abandoned quarries on the city’s outskirts to discard 25 lakh cubic metres of soil it will have to dig up to build a 14-km tunnel and 12 stations on the proposed underground section of the Gottigere-Nagawara corridor. According to BMRCL officials, the contract for the underground section work was recently awarded in two packages and two other packages are expected to be finalized shortly. “The quantity of excavated material is estimated to be 25 lakh cubic metres and BMRCL is responsible for its safe and environment friendly disposal,” an official said.The corporation has already obtained a no-objection certificate from the director of mines and geology department to utilize the abandoned quarries — spread over 21 acres — for dumping of the excavation waste. It has requested the Bengaluru Urban deputy commissioner to grant permission. BMRCL is also awaiting approval from the principal secretary, revenue department. “We wrote to both the revenue department and Bengaluru Urban deputy commissioner on April 15 seeking their permission to utilize these abandoned quarries, but haven’t received any response till now. We have now sought the chief secretary’s intervention as we don’t want the issue to delay the work,” the official added. Sources in BMRCL said Namma Metro Phase II was cleared in 2014 and has already been delayed by five years. According to earlier plans, the project was scheduled to be completed by 2020.