A man allegedly duped two youngsters of Rs 8 lakh on the pretext of offering them jobs as clerks in the Uttar Pradesh Jal Nigam, police said on Saturday. Following a court order, a case was registered in the matter on Friday against Mithilesh Singh, who belongs to Chhote Kazipur in the Kotwali police station area of Gorakhpur, said Circle Officer (Kotwali) Onkar Dutt Tiwari.