(Around 0:20:37) The car from which Supriya got down was Merc E270 that was launched in India in 2004.
(Around 0:42:43) The Rs 500 currency notes held by Anand Kumar bear the new rupee symbol and were first issued in 2011. The scene was set somewhere in 2000.
(Around 0:32:16) The car licence plate of a car passing by has black print over white background. This used to be the other way round prior to 2000. The scene was set in 1997.
(Around 0:41:11) The Contessa being driven by Lallan bore a licence plate with black print over white background. This used to be the other way round prior to 2000.
(Around 0:43:24) The phone numbers listed on the board being put up for Anand Kumar's institute have 9 and 8 digits respectively, instead of 10.