NEW DELHI: Google has replied to the Crime Branch of Delhi Police giving details pertaining to the e-mail address from where the CBSE chairperson was sent a mail about the Class 10 mathematics paper being leaked, an official privy to the probe said.A senior police officer said they had got a reply from the online search engine but refused to divulge further details.Meanwhile, the first arrests in connection with the CBSE paper leak were made from Chatra in Jharkhand today. Two directors of a private coaching centre have been held. Several class 10 and class 12 students from the district were also questioned.In the capital, police continued with their quest to trace the origin of the paper leaks as they visited the schools and coaching centres in outer Delhi that had come under their scanner. More than 60 people have been questioned till now, but the officer said there was "no breakthrough" in the case so far.Central Board of Secondary Education (CBSE) chairperson Anita Karwal had received an e-mail a day before the Class 10 mathematics exam, which was held on March 28, informing her about the paper being leaked.The sender of the e-mail had stated that the mathematics paper was leaked on WhatsApp and that the exam should be cancelled.The mail also contained 12 images of the handwritten mathematics paper allegedly leaked on WhatsApp.In order to identify the sender of the e-mail, the police had written to Google, asking it to share the details of the e-mail ID. Yesterday, the police had sent a reminder to the website to expedite the process.The Delhi Police had registered separate cases on March 27 and March 28 to probe the leak of the Class 12 economics paper and Class 10 mathematics paper, following a complaint by the regional director of the CBSE.The cases were registered on charges of criminal breach of trust, cheating and criminal conspiracy.The Class 12 economics and Class 10 mathematics exams were held on March 26 and March 28 respectively.A Special Investigation Team (SIT), comprising two deputy commissioners of police, four assistant commissioners of police and five inspectors, has been set up to investigate the matter.The team is being supervised by the joint commissioner of police (crime).