Did the producer and director Devendra Goel specialise in film names that incorporated numbers? Have a look at this (admittedly select) filmography: Ek Saal, Ek Phool Do Maali, Ek Mahal ho Sapnon ka, Do Musafir, Dus Lakh… Was he, perhaps, doing a countdown to what he hoped would be some blockbuster magnum opus that would put Mughal-e-Azam or Mother India firmly and permanently in the shade?
I don’t know, but this I can say: of all the Devendra Goel films I’ve seen (six), this is by far the best. It’s coherent, interesting, romantic – and it stars a wonderful lead couple: Ashok Kumar and Madhubala.