When Shakti Samanta was shooting the song Mere Sapno Ki Rani, he couldn't get combined dates from Rajesh Khanna and Sharmila Tagore. Sharmila Tagore couldn't make it to Darjeeling and so only Rajesh Khanna's portions were shot, showing him driving the jeep across the hills. Sharmila Tagore's footage was separately shot in Mumbai where a train set was erected in a studio. The two footages were later edited together to appear as if in the same frame.
In the song sequence 'Mere Sapon ki Rani', Sharmila Tagore is seen reading a book while seated in the train. The book's name is When Eight Bells toll, a thriller novel written by Alistair Maclean published in the year 1966.
Aradhana is first Hindi Film to run successfully more than 100 days , with four shows a day, in non-Hindi speaking areas of northeastern states of India and 4 southern Indian states.Aradhana ran for 3 years in theaters across southern India as well and was a platinum jubilee hit across India.
Sharmila Tagore....is one Indian film actress who was very successful in mainstream commercial cinema after having kids. Se was pregnant with Saif Ali Khan when she went on the stage to get her best actress award for Aradhana.