Goa, Jan. 5 -- The Enforcement Wing (South Zone) of the Karnataka Commercial Taxes Department has uncovered a massive interstate fake billing operation involving bogus transactions worth Rs.1,464 crore. The elaborate fraud, spread across Karnataka and Tamil Nadu, centred around false billing in cement, iron, steel, and other construction materials to evade Goods and Services Tax (GST).Officials say the syndicate fraudulently claimed approximately Rs.355 crore in input tax credit (ITC) through shell companies and fabricated trade documents.The racket was detected using advanced GST data analytics and the department's Non-Genuine Taxpayers (NGTP) system. Investigators traced suspicious IP activity and circular billing patterns, prompting la...