The CAG is at it again. About 16 months after it rocked the UPA government with its explosive report on allocation of 2G spectrum and licenses, the Comptroller & Auditor General's draft report titled 'Performance Audit of Coal Block Allocations' says the government has extended "undue benefits", totalling a mind boggling Rs 10.67 lakh crore, to commercial entities by giving them 155 coal acreage without auction between 2004 and 2009.