The probe by the Central Bureau of Investigation in the alleged corruption in connection with GST is moving towards a direction where it appears that an organised racket was being operated by the officials of Delhi Government.During the questioning of Manish Sisodia’s OSD, Gopal Krishna Madhav and middleman Dheeraj Gupta, the CBI gathered evidence that many other officials working with the GST (Goods and Services) department are involved in corruption, after which the CBI carried out raids at the GST office in national capital.The federal probe agency also conducted searches at the official and residential premises of Udit Prakash Rai, an IAS officer who is posted as Additional Commissioner in GST department of Delhi Government.