Nadia: The main accused in the ITI entrance question paper leak in West Bengal has been nabbed by police on Sunday night from Nadia district. Following a secret tip off police conducted a raid and arrested Arijit, believed to be the mastermind in the question paper leak. He will be produced at the court on Monday. The CID will seek custody to investigate and unearth the racket. The recent ITI entrance in the state was marred in controversy. One aspirant was issued an admit card with a dog’s face.