Prem Ratan Dhan Payo was India's Most Expensive Movie till 2015. It has spent nearly 1.80 billion (US$27 million) for the movie.
List of the top 10 expensive movie of Bollywood
Though if we compare the expense of two movies we should also consider the inflation. But its too difficult so just proving the list of top 10 movies with the production budget -
Prem Ratan Dhan Payo 2015
Budget: ₹1.80 billion (US$27 million)
Dhoom 3 2013
Budget: ₹1.75 billion (US$26 million)
Bang Bang! 2014
Budget: ₹1.60 billion (US$24 million)
Happy New Year 2014
Budget: ₹1.50 billion (US$22 million)
Kick 2014
Budget: ₹1.40 billion (US$21 million)
Enthiran 2010
Budget: ₹1.32 billion (US$20 million)
Ra.One 2011
Budget: ₹1.30 billion (US$19 million)
Bajirao Mastani 2015
Budget: ₹1.25 billion (US$19 million)
Bajrangi Bhaijaan 2015
Budget: ₹1.25 billion (US$19 million)
Kochadaiiyaan 2014
Budget: ₹1.25 billion (US$19 million)