CWG: CVC asks CBI to register corruption case     STAFF WRITER 15:4 HRS IST Ashwini Shrivastava New Delhi, Jul 30 (PTI) The Central Vigilance Commission has asked the CBI to register a corruption case against certain MCD officials in connection with irregularities in a tender issued for a Commonwealth Games project worth several crores. Official sources said a letter of complaint has been sent to CBI asking for a probe into alleged criminal conspiracy by unknown MCD officials while granting work for upgradation of street lighting in the national capital. They said the contractor who had got the job after quoting the lowest amount for the project was later allegedly allowed to change the figures to earn more profit. However, the exact amount of profits made by the contractor could not be ascertained but officials believe it may run up to Rs 20 crore.