Pune, May 22 -- The Central Bureau of Investigation (CBI) on Thursday questioned key accused in the alleged NEET-UG paper leak case at its Pune office as part of efforts to uncover the wider network involved in the racket, people aware of the matter said. According to a CBI officer, who did not want to be named, a team from Delhi brought accused Dhananjay Lokhande to Pune, where he had earlier been taken into custody. He was questioned alongside Manisha Waghmare, a beautician, and Manisha Mandhare, a suspended biology professor. CBI had arrested the trio last week for their alleged role in the paper leak case. The probe agency also called some students to get information about their alleged association with the arrested accused. The officer said investigators are trying to establish the exact chain through which leaked examination papers allegedly reached students and parents. The probe is focusing on how question papers were circulated and the financial transactions involved in the racket. CBI officers suspect the accused played different roles in identifying students, contacting parents and facilitating the alleged leak operation. Investigators are also examining whether candidates received the leaked paper directly or were made to memorise answers orally before the examination. More parents are also likely to be called for questioning. According to officers, digital evidence recovered from mobile phones and electronic devices is being analysed by forensic and cyber experts. Officers believe some data may have been deleted, but investigators are attempting to retrieve it through technical analysis....