New Delhi/Srinagar, Nov. 21 -- A Delhi court on Thursday sent three doctors and a preacher, who were arrested in connection with the November 10 car blast outside the Red Fort in which at least 12 people were killed, to 10-day NIA custody. The doctors, Muzammil Ganaie, Adeel Rather and Shaheena Saeed, as well as Maulvi Irfan Ahmed Wagay had been arrested by the Jammu and Kashmir Police. Earlier in the day, the National Investigation Agency (NIA) took them into custody in Srinagar and produced them in the Patiala House Court. Principal District and Sessions Judge Anju Bajaj Chandna sent the four accused to 10 days of NIA custody on the anti-terror probe agency's plea, seeking 15 days of custodial interrogation. There was heavy security in the court premises with an RAF contingent deployed alongside Delhi Police personnel. With these arrests, the number of people booked in connection with the 'white collar' terror plot has gone up to six. HTC...