A Delhi court today allowed the CBI to interrogate in custody for four days a senior IAS officer and two others in connection with the alleged Rs 340 crore excise duty evasion case.<br/><br/>O Ravi, Joint Secretary (Disaster Management) in the Ministry of Home Affairs, and two others Rakesh Rastogi and Ashok Khemani were remanded to CBI custody by Additional Sessions Judge O P Saini till the 3rd of next month to enable the investigating agency to unravel the conspiracy.<br/><br/>Ravi, a 1983 batch IAS officer, allegedly took a bribe of 25 lakh rupees to get the Daman administrator transferred.<br/><br/>Rastogi allegedly played role of a middleman in connection with the transfer of the Administrator.<br/><br/>CBI arrested owner of Royal distilleries Ashok Khemani and three excise officials last night. Khemani was arrested from a hotel in the national capital while the others were<br/>arrested from Daman.<br/><br/>A case under various sections of IPC and Prevention of Corruption Act has been registered against Ravi, two excise inspectors Ramesh Mahyavanshi and Vijay Halpati and sub-inspector Suresh Dhodi.<br/> <br/>The directors of six distilleries Royal, Jupiter, Krimpy, Silver Star and Dharmesh and some unidentified persons were also booked for alleged fraud.<br/><br/>According to the CBI, it has conducted searches at 36 places of the accused persons at Daman, Mumbai and New Delhi.<br/>