Accoridng to Boxofficeindia.com, below are the top ten Bollywood grossers worldwide in 2016.
Sultan- 584.79 crore (42 days) (Made on a budget of Rs. 70 Cr)
Airlift - 209.97 crore (Made on a budget of Rs. 30 Cr)
Housefull 3 - 197.84 crore (Made on a Budget of Rs. 92 Cr)
Fan - 184.93 crore (Made on a budget of Rs. 85 Cr)
Rustom - 179 crore (10 Days) (Made on a budget of Rs. 50 Cr)
Kapoor & Sons - 143.28 crore (Made on a budget of Rs. 35 Cr)
Baaghi - 126.96 crore (Made on a budget of Rs. 35 Cr)
Dishoom - 119 crore (24 days) (Made on a budget of Rs. 55 Cr)
Neerja - 118.71 crore (Made on a budget of Rs. 20 Cr)
Mohenjo Daro - 102.53 crore (10 Days) (Made on a budget of Rs. 115 Cr)
Mohenjo Daro's collection may be over Rs. 100 Cr. but it is still considered a flop movie because the production cost was Rs. 115 Cr.
Sultan is the biggest hit of 2016. Neerja, Baaghi and Kapoor & Sons also did outstanding business considering the low budget these movies were made on.