The fourth T20I between India and South Africa was called off on Wednesday owing to poor visibility after a dense layer of smog engulfed the Ekana Stadium raising serious questions about BCCI's scheduling of matches in northern part of India during peak winter month. The venues allotted for the full series against the Proteas included New Chandigarh, Dharamsala, Lucknow, Ranchi, Raipur, Visakhapatnam, Cuttack, Ahmedabad, Guwahati and Kolkata during November and December. It is also a period when pollution levels in the host cities like Lucknow, New Chandigarh and Dharamsala are usually at its worst.