Customs officers at Delhi”s Indira Gandhi International Airport have arrested three passengers in separate smuggling cases after seizing 6.37 kg of suspected hydroponic weed concealed inside aircraft lavatories, beneath passenger seats and in baggage, officials said on Monday.Hydroponic weed is a high-potency variety of cannabis grown in nutrient-rich water instead of soil.The three seizures, involving passengers arriving from Bangkok and Phuket, resulted in the recovery of 6.37 kg of the suspected contraband, separate official statements said.In the first case, an Indian passenger arriving from Bangkok on Monday was intercepted on the basis of advance passenger information system (APIS) profiling after crossing the Green Channel, a statement said.While nothing suspicious was found in the passenger’s baggage, Customs officers rummaged through the aircraft and found four sealed packets of suspected hydroponic weed weighing 3.47 kg, concealed inside both the rear lavatories, it said.“On being questioned, the passenger admitted to concealing the packets inside the lavatories,” the statement said.In another case, a passenger arriving from Phuket on Monday was intercepted on the basis of APIS profiling. When no …