LUCKNOW, April 21 -- The STF on Sunday arrested three members of a gang that duped some candidates of a recruitment exam in the name of genuine question papers. Two of the candidates were scammed of Rs 12 lakh by the trio, they said. The exam for recruitment to the posts of assistant professors was conducted by the Uttar Pradesh Education Selection Commission, Prayagraj, on April 16 and 17. "The accused were identified as Baijnath Pal, 48, Vinay Kumar Pal, 38, and Mehboob Ali, 43....