Maintaining it would ‘‘look into each and every allegation and complaint made by Satyendra Dubey,’’ the CBI today registered a case against a former project director of the National Highway Authority of India (NHAI) and a retired Brigadier, connected to the project work, after conducting searches in Delhi. Both were named by Dubey when he complained to the Prime Minister’s Office about corruption along a Bihar stretch of the Golden Quadrilateral highway project where he had been working. Dubey’s request that his identity be protected was not honoured and he was killed in Gaya on the night of November 27, 2003. Although the CBI has dismissed his murder as the fallout of a roadside robbery, it has begun probing the corruption charges Dubey had levelled. Three days ago, the CBI quietly registered the first of what it says will be a clutch of criminal cases on the basis of complaints made by Dubey. The FIR in the case was placed in a sealed cover in a Patna court on September 26. CBI Director U S Misra told The Indian Express to expect more cases. ‘‘This is only the first case we have filed. More cases will definitely be registered as we look into each and every allegation and complaint made by Satyendra Dubey,’’ Misra said. He confirmed that they had recovered enough material to possibily register a case of disproportionate assets against a top NHAI official. In fact, the FIR, dealing with irregularities in execution of road work in package V-B, covering 80 km, of the Delhi-Kolkata stretch of the GQ, names two persons against whom searches were conducted in Delhi today. Also named are a senior official of a multinational company and ‘‘other’’ officials. The FIR states that work on this stretch was done by ‘‘unapproved/unauthorised and incompetent subcontractors at sufficiently less rates, against the provisions of the contract agreement. with the intention to obtain undue pecuniary advantage for themselves and corresponding loss to the Government.’’