The Anti-Corruption Bureau has arrested an assistant sub-inspector (ASI) of the Thane traffic department for allegedly taking a bribe of Rs 3,000 from an auto-rickshaw owner, ACB officials said on Tuesday. The 57-year-old ASI caught an auto-rickshaw driver for violation of traffic rules and not wearing the uniform and batch here in Maharashtra on March 19, Thane ACB inspector Suresh Chopde said.