A Special Central Bureau of Investigation (CBI) court on Tuesday sent Vipul Chitalia, the Vice President of Banking Operations of Mehul Choksi's Gitanjali Group, to CBI custody till March 17 in the multi-crore Punjab National Bank (PNB) fraud case. Chitalia was arrested from the Mumbai airport on Tuesday morning by the CBI, soon after he landed in the city from Bangkok. Later, he was produced before the Special CBI court. The CBI told the court that Chitalia was instrumental in preparing fraudulent Letters of Understanding (LoUs) and Foreign Letter of Credit (FLC).