Sources informed IANS, Mumbai local trains play a vital role in the film, so "when promotion strategies were being discussed, promotions on train was considered an important idea". "Emraan and Vidya are set to promote the film on the local trains in four cities including Mumbai, Delhi, Indore and Lucknow," the source added.
Last year, Vidya Balan was spotted promoting her movie Kahaani in a BEST bus. Surprisingly, the actress was seen in her pregnant avatar during the promotions.
Directed by Rajkumar Gupta, Ghanchakkar is all set to release on June 21.