Imran Khan and Kangana Ranaut's 'Katti Batti' chemistry

Imran Khan and Kangana Ranaut promote their upcoming film 'Katti Batti' at a radio station.

Kangana sported a blue blouse with a brown pinafore, both by Zara.

'Katti Batti' is a modern day take on relationships and is slated to release on September 17 (UAE).