 Filming began on location on 3 October 1973 , with a scene featuring Bachchan and Bhaduri . The film had a lavish production for its time ( with frequent banquets and parties for the cast ) , took two and a half years to make , and went over budget . One reason for its high cost was that Sippy re @-@ filmed scenes many times to get his desired effect . " Yeh Dosti " , a 5 @-@ minute song sequence , took 21 days to shoot , two short scenes in which Radha lights lamps took 20 days to film because of lighting problems , and the shooting of the scene in which Gabbar kills the imam 's son lasted 19 days . The train robbery sequence , shot on the Mumbai – Pune railway route near Panvel , took more than 7 weeks to complete . 
 Filming began on location on 3 October 1973 , with a scene featuring Bachchan and Bhaduri . The film had a lavish production for its time ( with frequent banquets and parties for the cast ) , took two and a half years to make , and went over budget . One reason for its high cost<a href='been_done' title='1'><mark></mark></a> was that Sippy re @-@ filmed scenes many times to get his desired effect . " Yeh Dosti " , a 5 @-@ minute song sequence , took 21 days to shoot , two short scenes in which Radha lights lamps took 20 days to film because of lighting problems , and the shooting of the scene in which Gabbar <a href='uninflect' title='2'><mark>kills</mark></a> the imam <a href='null_genetive' title='3'><mark>'s</mark></a>son<a href='been_done' title='4'><mark></mark></a> lasted 19 days . The train robbery sequence , shot on the Mumbai – Pune railway route near Panvel , took more than 7 weeks to complete . 
Filming began on location on 3 October 1973 , with a scene featuring Bachchan and Bhaduri . da film had a lavish production for its time ( witt frequent banquets and parties for tdacast ) , took two and a half years to make , and went ova budget . One reason fa its high cost been was dat Sippy re @-@ filmed scenes many times to get his desired effect . " Yeh Dosti " , a 5 @-@ minute song sequence , took 21 days to shoot , 2 short scenes in which Radha lights lamps took 20 dayz to film because of lighting problems , and thdahooting of the scene in which Gabbar kill the imam  son been lasted 19 dayz . The train robbery sequence , shot on thedambai – Pune railway route near Panvel , took more den 7 weeks to complete .