LUCKNOW, March 23 -- The Uttar Pradesh Special Task Force (STF) has arrested a key operative of an interstate GST evasion racket that allegedly caused a revenue loss of over Rs.100 crore by generating fake invoices and e-way bills through bogus firms, officials said on Sunday. Acting on intelligence inputs, an STF team from Lucknow reached Pune on Saturday and tracked down the accused on Sunday. He was arrested from Viman Nagar in Pune, Maharashtra, at around 8:15 am on Sunday. The accused was identified as Keshwani Abbas Hussain Ramzan Ali. According to officials, he was part of an organised network that created shell firms using forged documents and issued fake invoices and e-way bills to genuine businesses. These were used by beneficiary firms to fraudulently claim input tax credit (ITC) without any actual trade, causing substantial losses to the government exchequer. The Special Task Force recovered two laptops, two mobile phones and a passport from the accused. Investigators said he, along with associates identified as Raees and Muntazir, operated from Maharashtra and Gujarat, handling accountancy-related work while running the fraudulent network....