PATNA, Dec. 10 -- As many as 11 pairs of flights of IndiGo operating to and from Patna were cancelled among over 400 across the country, on Tuesday, the eighth consecutive day of the airline's operational chaos, said airport officials. Earlier in the day, the DGCA directed the airline to cut its operations by 5 per cent, which the aviation ministry increased to 10 per cent. Among the flights cancelled to Patna on Tuesday were those from New Delhi (three), Hyderabad (two), Chennai (two), Bengaluru (three) and Kolkata (one). The cancellations left passengers, many with connecting flights, stranded in Patna....