Delhi is is in deep trouble due to excessive pollution that is causing a huge health hazard. Visibility is close to nil on Delhi roads. Smog has forced to stop operations of flights from Delhi following which flights between Delhi and Udaipur were cancelled on Sunday. 
Indigo Air cancelled its evening flights between Udaipur and Delhi on Sunday. It may be noted that Indigo reaches Udaipur from Delhi at 4:30 p.m. and takes off again at 5 p.m. As informed by Kuldip Rishi, Director Udaipur Airport, all other flights operated on time except this flight connecting Udaipur and Delhi.