COIMBATORE: The withdrawal of flight services connecting Salem with Bengaluru, Hyderabad and Kochi has left passengers and industries across western Tamil Nadu. .The three services, introduced under the Centre's Regional Connectivity Scheme, were discontinued last month following the completion of a three-year subsidy period. The withdrawal has particularly affected business travellers, IT professionals and industrial establishments in Salem, Krishnagiri, Dharmapuri and Namakkal districts.