A record number of IAS officers,24,have been investigated by the CBI in corruption cases between January 2011 and March this year. They came under the agencys scanner for their alleged role in land scams,disproportionate assets cases and for taking policy decisions that favoured private parties,according to information available with the CBI. The alleged role of many of these bureaucrats came to light through responses to RTI queries. CBI officials said the agency had secured sanction for prosecuting many of these officers under Section 19 A of the Prevention of Corruption Act and would soon file chargesheets. It is mandatory for the CBI to get the approval of the Department of Personnel and Training to prosecute officials. Some of the high-profile bureaucrats under investigation: JAIRAJ PHATAK: The 1978-batch,Maharashtra-cadre officer is accused in the Adarsh Housing Society scam. Phatak had served as principal secretary in the state urban development department. He is accused of allowing the height of the building in Mumbai to be raised beyond 100m without the approval of the high-rise committee of the civic body. His son got a flat in Adarsh,allegedly as quid pro quo. PRADEEP VYAS: A co-accused in the Adarsh scam,Vyas was arrested by the CBI recently. A 1989-batch IAS officer of the Maharashtra cadre,Vyas,during his tenure as district collector of Mumbai from August 2002 to May 2005,allegedly connived with the other accused and accepted false documents as proof of of income and granted membership to Adarsh to those not eligible. His wife Seema Vyas,also an IAS officer,owns a flat in Adarsh. K SURESH KUMAR: A 1982-batch,Madhya Pradesh-cadre IAS officer,Kumar has been booked for allegedly allowing the berthing of a foreign vessel in violation of rules in 2007. The ship allegedly had neither valid papers nor crew on board. By allowing it to dock and not collecting payments,including additional berth hire charges,demurrage and legal expenses,a loss of over Rs 20 crore was allegedly caused to the government. The CBI seized Rs 2.36 crore during raids on Kumars home. B V SELVARAJ: A 1981-batch,UT-cadre IAS officer,Selvaraj allegedly took a bribe from a contractor promising him government contracts when he was posted as administrator in Lakshadweep. ABRAHUM VARICKAMACKAL: A 1998-batch UT-cadre IAS officer,Varickamackal allegedly abused his official position between 2006 and 2009 and entered into a conspiracy with a government contractor named Kassim. The CBI has alleged that Varickamackal without authorisation awarded contracts to Kassim for supply of river sand and granite chips from the mainland to the islands of Lakshadweep,and that he was was later joined in the conspiracy by his senior,Selvaraj. B P ACHARYA: A 1983-batch IAS officer,Acharya was charged in a case of corruption related to industrial infrastructure in Hyderabad. Acharya was arrested in January this yea,when he was the home secretary of Andhra Pradesh. He was previously the managing director of APIIC. L V SUBRAMANYAM: Another 1983-batch IAS officer from Andhra Pradesh,Subramanyam was facing charges of corruption in the Emmar-MGF scam. He and his batchmate Acharya have been accused of bungling in a properties scam involving former Andhra Pradesh chief minister Y S R Reddy. Y SRILAXMI: A 1988-batch IAS officer from Andhra Pradesh,Srilaxmi has been accused of showing preferential treatment to the owner of Obulapuram Mining Company. Srilakshmi was Andhra Pradeshs secretary for industries. O RAVI: A 1983-batch IAS officer,Ravi was arrested by the CBI for allegedly demanding a bribe of Rs 25 lakh from Daman and Diu-based distilleries. The CBI had alleged that favours shown to the distilleries resulted in a loss of Rs 340 crore to the exchequer. Ravi was posted as joint secretary in the Union Home Ministry before his arrest. SADA KANT: A 1983-batch IAS officer from Uttar Pradesh,Kant was under the scanner for his alleged role in the award of a contract involving a high-altitude road in Leh. He was repatriated to his parent cadre by the Home Ministry where he was posted as joint secretary,border management. MANOJ KUMAR AGGARWAL: A 1990-batch West Bengal-cadre IAS officer,Aggarwal was under the scanner of the CBI for allegedly amassing wealth beyond his known source of income. PARIMAL RAI: The high profile senior bureaucrat is being probed for his alleged role in the CWG scam. A 1985-batch IAS officer,Rai was the chairman of NDMC at the time of the CWG. He was booked by the CBI in connection with alleged irregularities in the construction of a convention centre,which resulted in a loss of Rs 15 crore. RAKESH MOHAN: A 1978-batch IAS officer,Mohan,during his stint as Delhi governments financial commissioner,allegedly took a bribe of Rs 3 crore from a private company for awarding a contract for the renovation of Delhi Jal Boards pipelines at an over-valued cost of Rs 35.84 crore. VINOD KUMAR: A 1989-batch IAS officer,Kumar is named in seven cases in the Orissa Rural Housing Development Corporation which involve a total of Rs 475 crore. PRADEEP SHUKLA: A 1981-batch IAS officer,Shukla is accused in Uttar Pradeshs National Rural Health Mission scam. The topper of his batch,Shukla has held several important portfolios in UP. His wife Anuradha Shukla is also an IAS officer and is posted in UP. K DHANALAKSHMI GOWDA: A 2000-batch IAS officer,Gowdas name was linked to the UPSIDC land scam. The house of the IAS officer from Uttar Pradesh was raided by the CBI on suspicion that she had amassed more wealth than her known sources of income. SIDDHARTHA BEHURA: Behura was arrested by the CBI in the 2G scam along with former telecom minister A Raja. A 1973-batch,UP cadre IAS officer,Behura is alleged to be one of the key conspirators in the 2G scam. Behura had retired by the time of his arrest. He has been chargesheeted by the CBI along with Raja and others. Dr PRADEEP KUMAR: A former health secretary of Jharkhand,Kumar was on the run for several months after being named by the CBI in an NRHM scam. A 1991-batch IAS officer,he has been accused of being involved in the scam worth Rs 130 crore,taking a bribe of Rs 4.85 lakh in a logistics scandal and acquiring disproportionate assets. DEBADITYA CHAKRABORTY: A 1976-batch IAS officer of the West Bengal cadre,Chakraborty was arrested for his alleged involvement in a Rs 125 crore scam in Kolkata. He was accused of misappropriating funds in an iron ore export deal involving a Chinese firm. R M JAMIR: A 1977-batch IAS officer of the West Bengal cadre,Jamir is allegedly involved in the same case as Chakraborty. SHIV SHANKAR SHARMA: A 1981-batch IAS officer from Bihar,Sharma is being probed in a disproportionate assets case.