New Delhi, March 23 -- A Delhi court has allowed the Enforcement Directorate to send letters rogatory (LR) to 21 countries, involving the UK and the UAE, seeking assistance in the probe of a Rs 8,100 crore bank fraud case involving Gujarat-based Sterling Biotech Ltd. Additional Sessions Judge Satish Kumar Arora granted permission to the agency on its plea seeking nod to send the LRs, also known as letter of request, to countries, also involving the US, China, Panama and Austria. The LRs will also be send to Albania, where the court recently allowed the ED to send extradition requests, after its special public prosecutor Nitesh Rana informed that its two directors -- Nitin Sandesara and Chetankumar Sandesara -- have obtained the citizenship....