During the defect liability period, DAMEPL noticed certain defects in construction of AEML and accordingly issued a notice to DMRC to cure the defects. Despite various meetings held between the parties, the defects as pointed out by DAMEPL remained allegedly unresolved. Accordingly, DAMEPL stopped all work and issued a notice to DMRC terminating the Concession Agreement. DMRC invoked arbitration under the Concession Agreement.