At least 30 persons, who hadtravelled to Maharashtra's Sangli district in a bus from Uttar Pradesh were detained and sent for institutional quarantine, police said on Thursday.The bus carrying 30 persons was intercepted by the police and health officials at Miraj on Wednesday and on investigation, it was found that the passengers were residents of Sangli, who had gone to Varanasi in Uttar Pradesh on business, an official said.The COVID-19 lockdown had forced them to stay back in Varanasi for some time, but they decided to make their way home to Sangli, he said.All 30 passengers were detained, taken to a civil hospital for swab tests and then sent to a quarantine facility at the Government Polytechnic in Miraj, where they will remain for the next 14 days, he said.