Adding to the trails of troubles of Aam Aadmi Party (AAP), the Central Bureau of Investigation (CBI) on Tuesday arrested Vijay Nair, the communication-in-charge of the party for his alleged role in the irregularities pertaining to the now scrapped excise policy of the Delhi Government. Nair, the former CEO of an event management company Only Much Louder, was called by the CBI for enquiry and was taken into custody. The FIR filed by the CBI on the instructions of LG Vijay Saxena contains 15 names including that of Nair and Deputy Chief Minister Manish Sisodia.