An IndiGo aircraft sits on the tarmac at Lucknow airport after its Agartala-Delhi flight made an emergency diversion on Tuesday evening due to a cargo hold smoke alert; all 109 passengers and crew landed safely. (Catch all the business news , Breaking News and Latest News Updates on The Economic Times .) Subscribe to The Economic Times Prime and read the ET ePaper online. (Catch all the Business News , Breaking News and Latest News Updates on The Economic Times .) Subscribe to The Economic Times Prime and read the ET ePaper online.