Chennai Express had a huge collection in paid previews as it collected around 6 crore nett. It is the highest paid previews ever by a distance but so were the screenings. The film has recorded phenomenal collections in Mumbai and South with Mumbai collection being amongst the top five if we compare with the full first days of releases in 2013.
The paid previews in South are even better as the collections are better than the full first days of all films released in 2013 apart from Yeh Jawaani Hai Deewani and Race 2.
North India was lower comparatively while the Central and Eastern markets have less multiplexes so paid previews don't get as many screenings as the bigger circuits.