Chandigarh: UT police filed a case against owners and employees of an immigration firm for allegedly duping 16 persons of Rs 80 lakh on the pretext of providing them study visas. Pooja Goyal, a resident of Phase 11, Mohali, alleged that Manpreet Singh, Ravinder Singh Brar, Sukhwinder Kaur, Rachna Kaushik, Payal, Anjali and Aarti of B B Council, Sector 17 duped her and others of Rs 80.63 lakh on the pretext of sending them abroad on study visas.