Kolkata: The Special Task Force (STF) of Kolkata Police nabbed three persons with huge quantities of amphetamines, commonly known as 'Yaba', in tablet form. During the search, the police found 60,000 Yaba tablets weighing about 6 kg from Ahmed. Two persons — Baki Billa Gazi of Bashirhat and Akhtarul Gazi of Swarupnagar in North 24-Parganas — who were about to cut the deal with him, were also detained. Baki Billa, Akhtarul and Md Ali were taken to STF police station in Lalbazar. Sources informed that Ahmed was about to hand over the Yaba tablets to Baki Billa and Akhtarul, which were to be smuggled to Bangladesh..