The Assam Police has opened communication with other states to track a possible pan-India bank fraud network that has been withdrawing money from government accounts using forged financial instruments like cheques. The state had earlier alerted at least a dozen states after a probe into a bank fraud in the Chief Minister's Relief Fund found that a gang had been withdrawing public money from government accounts, sources have said. The matter came to light after a five-member gang from Uttar Pradesh's Basti was busted last week by the Assam Chief Minister's special Vigilance cell. The gang allegedly ran a wider pan-India network.