Pradyuman’s father, Varun Thakur, on Tuesday, said the school should not be functional till CBI takes over the case. He added that they can try to temper the evidences as this has been done earlier also. Varun Thakur, who lost his seven-year-old son in Ryan International School, said there has already been a huge delay in this case. Pradyuman was found dead with his throat being slit. Investigation in this matter is underway with all fingers pointing at accused bus conductor Ashok.