mumbai, Dec. 6 -- The railway ministry on Friday decided to increase 116 coaches in 37 premium trains for the convenience of travellers in view of the disruption caused due to Indigo airline's flight cancellations. "These trains originate from important stations such as New Delhi, Mumbai, Lucknow, Jammu Tawi, Patna, Howrah and Chennai, and provide connectivity to several big and small cities," officials said. The railways is ready to increase the number of all types of AC coaches in several premium trains due to a sudden surge in the passengers' demand, they said. "We are keeping a watch on the situation very closely. If the situation demands, we might run special fully air-conditioned trains on several routes connecting big and small citie...